diff --git a/06-containers-on-the-cloud.html b/06-containers-on-the-cloud.html
index eb1e68f6..c9268618 100644
--- a/06-containers-on-the-cloud.html
+++ b/06-containers-on-the-cloud.html
@@ -539,7 +539,7 @@ <h3 id="edit-your-repositorys-bitbucket-pipelines-yml-file-through-the-web">Edit
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   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/08-orchestration.html b/08-orchestration.html
index 9fd3e0dd..12f0ab11 100644
--- a/08-orchestration.html
+++ b/08-orchestration.html
@@ -470,7 +470,7 @@ <h3 class="callout-title">The Wild West</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/08-orchestration.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/404.html b/404.html
index f879ffcc..0da4380e 100644
--- a/404.html
+++ b/404.html
@@ -407,8 +407,8 @@ <h1>Page not found</h1>
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   "identifier": "https://preview.carpentries.org/docker-introduction/404.html",
   "dateCreated": "2024-08-16",
-  "dateModified": "2024-12-10",
-  "datePublished": "2024-12-10"
+  "dateModified": "2024-12-17",
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index 1a988e10..03a2144b 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -422,7 +422,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://preview.carpentries.org/docker-introduction/CODE_OF_CONDUCT.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/LICENSE.html b/LICENSE.html
index 2287385e..c640f85e 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -470,7 +470,7 @@ <h1>Licenses</h1>
   "identifier": "https://preview.carpentries.org/docker-introduction/LICENSE.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/about.html b/about.html
index 28e554ff..e28c7beb 100644
--- a/about.html
+++ b/about.html
@@ -415,7 +415,7 @@ <h1>About</h1>
   "identifier": "https://preview.carpentries.org/docker-introduction/about.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/advanced-containers.html b/advanced-containers.html
index b3b70aac..7112f94c 100644
--- a/advanced-containers.html
+++ b/advanced-containers.html
@@ -1043,7 +1043,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/advanced-containers.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-09-12",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/aio.html b/aio.html
index 3f369a91..93f41952 100644
--- a/aio.html
+++ b/aio.html
@@ -1243,7 +1243,7 @@ <h3 class="callout-title">Exercise: Check on Your Images</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>To see if the <code>hello-world</code> container image is now on your
 computer, run:</p>
@@ -1401,7 +1401,7 @@ <h3 class="callout-title">Hello World, Part 2</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Use the same command as above, but with the <code>echo</code> command
 to print a message.</p>
@@ -1494,7 +1494,7 @@ <h3 class="callout-title">Practice Makes Perfect</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Solution 1 – Interactive </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>Run an interactive ubuntu container – you can use
 <code>docker image pull</code> first, or just run it with this
@@ -1532,7 +1532,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4"> Solution 2 – Run commands </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>Run a ubuntu container, first with a command to read out the Linux
 version:</p>
@@ -2209,7 +2209,7 @@ <h3 class="callout-title">Exercise: Searching for Help</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>A quick search should hopefully show that the way to install R on
 Alpine Linux is:</p>
@@ -2314,7 +2314,7 @@ <h3 class="callout-title">Exercise: Take a Guess</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Solution: </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Based on our experience above, edit the <code>Dockerfile</code> (in
 your text editor of choice) to look like this:</p>
@@ -2414,7 +2414,7 @@ <h3 class="callout-title">Exercise: Review!</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li><p>To see your new image, run <code>docker image ls</code>. You
@@ -3698,8 +3698,8 @@ <h3 class="callout-title">Key Points</h3>
   "url": "https://preview.carpentries.org/docker-introduction/aio.html",
   "identifier": "https://preview.carpentries.org/docker-introduction/aio.html",
   "dateCreated": "2024-08-16",
-  "dateModified": "2024-12-10",
-  "datePublished": "2024-12-10"
+  "dateModified": "2024-12-17",
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/creating-container-images.html b/creating-container-images.html
index 8bdc0628..6b740cc4 100644
--- a/creating-container-images.html
+++ b/creating-container-images.html
@@ -460,7 +460,7 @@ <h3 class="callout-title">Exercise: Searching for Help</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>A quick search should hopefully show that the way to install R on
 Alpine Linux is:</p>
@@ -561,7 +561,7 @@ <h3 class="callout-title">Exercise: Take a Guess</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Solution: </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Based on our experience above, edit the <code>Dockerfile</code> (in
 your text editor of choice) to look like this:</p>
@@ -655,7 +655,7 @@ <h3 class="callout-title">Exercise: Review!</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li><p>To see your new image, run <code>docker image ls</code>. You
 should see the name of your new container image under the “REPOSITORY”
@@ -869,7 +869,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/creating-container-images.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-09-12",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/discuss.html b/discuss.html
index ee6580de..19e6e8e7 100644
--- a/discuss.html
+++ b/discuss.html
@@ -415,7 +415,7 @@ <h1>Discussion</h1>
   "identifier": "https://preview.carpentries.org/docker-introduction/discuss.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/docker-hub.html b/docker-hub.html
index e830919a..e2ea7ff1 100644
--- a/docker-hub.html
+++ b/docker-hub.html
@@ -654,7 +654,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/docker-hub.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/docker-image-examples.html b/docker-image-examples.html
index efa70eeb..e0823fef 100644
--- a/docker-image-examples.html
+++ b/docker-image-examples.html
@@ -505,7 +505,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/docker-image-examples.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-09-12",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/e01-github-actions.html b/e01-github-actions.html
index e29cbb53..36074af5 100644
--- a/e01-github-actions.html
+++ b/e01-github-actions.html
@@ -646,7 +646,7 @@ <h1 id="reference-material">Reference material<a class="anchor" aria-label="anch
   "identifier": "https://preview.carpentries.org/docker-introduction/e01-github-actions.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/images.html b/images.html
index 197daff7..9d2a6d80 100644
--- a/images.html
+++ b/images.html
@@ -464,8 +464,8 @@ <h3 id="introduction-figure-1">Figure 1</h3>
   "url": "https://preview.carpentries.org/docker-introduction/images.html",
   "identifier": "https://preview.carpentries.org/docker-introduction/images.html",
   "dateCreated": "2024-08-16",
-  "dateModified": "2024-12-10",
-  "datePublished": "2024-12-10"
+  "dateModified": "2024-12-17",
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/index.html b/index.html
index a5780262..e5cd79c0 100644
--- a/index.html
+++ b/index.html
@@ -709,8 +709,8 @@ <h3 id="a-quick-tutorial-on-copypasting-file-contents-from-episodes-of-the-lesso
   "url": "https://preview.carpentries.org/docker-introduction/index.html",
   "identifier": "https://preview.carpentries.org/docker-introduction/index.html",
   "dateCreated": "2024-08-16",
-  "dateModified": "2024-12-10",
-  "datePublished": "2024-12-10"
+  "dateModified": "2024-12-17",
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor-notes.html b/instructor-notes.html
index 8fffb373..9f55a0c4 100644
--- a/instructor-notes.html
+++ b/instructor-notes.html
@@ -723,8 +723,8 @@ <h3 id="learner-pathways">Learner Pathways<a class="anchor" aria-label="anchor"
   "url": "https://preview.carpentries.org/docker-introduction/instructor-notes.html",
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor-notes.html",
   "dateCreated": "2024-08-16",
-  "dateModified": "2024-12-10",
-  "datePublished": "2024-12-10"
+  "dateModified": "2024-12-17",
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/06-containers-on-the-cloud.html b/instructor/06-containers-on-the-cloud.html
index 0ebcf26f..ea909785 100644
--- a/instructor/06-containers-on-the-cloud.html
+++ b/instructor/06-containers-on-the-cloud.html
@@ -541,7 +541,7 @@ <h3 id="edit-your-repositorys-bitbucket-pipelines-yml-file-through-the-web">Edit
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/06-containers-on-the-cloud.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/08-orchestration.html b/instructor/08-orchestration.html
index 63c8bdee..a9aba7d2 100644
--- a/instructor/08-orchestration.html
+++ b/instructor/08-orchestration.html
@@ -472,7 +472,7 @@ <h3 class="callout-title">The Wild West</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/08-orchestration.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/404.html b/instructor/404.html
index 686b4e4d..28e96be7 100644
--- a/instructor/404.html
+++ b/instructor/404.html
@@ -407,8 +407,8 @@ <h1>Page not found</h1>
   "url": "https://preview.carpentries.org/docker-introduction/instructor/404.html",
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/404.html",
   "dateCreated": "2024-08-16",
-  "dateModified": "2024-12-10",
-  "datePublished": "2024-12-10"
+  "dateModified": "2024-12-17",
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/CODE_OF_CONDUCT.html b/instructor/CODE_OF_CONDUCT.html
index 393e78e2..35a7db36 100644
--- a/instructor/CODE_OF_CONDUCT.html
+++ b/instructor/CODE_OF_CONDUCT.html
@@ -424,7 +424,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/CODE_OF_CONDUCT.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index 6458b2ed..bde6c24f 100644
--- a/instructor/LICENSE.html
+++ b/instructor/LICENSE.html
@@ -472,7 +472,7 @@ <h1>Licenses</h1>
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/LICENSE.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/about.html b/instructor/about.html
index ea45a39b..30807cb5 100644
--- a/instructor/about.html
+++ b/instructor/about.html
@@ -417,7 +417,7 @@ <h1>About</h1>
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/about.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/advanced-containers.html b/instructor/advanced-containers.html
index 94e63ae0..23e27254 100644
--- a/instructor/advanced-containers.html
+++ b/instructor/advanced-containers.html
@@ -1045,7 +1045,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/advanced-containers.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-09-12",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/aio.html b/instructor/aio.html
index f0720258..5a24cc4a 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -1256,7 +1256,7 @@ <h3 class="callout-title">Exercise: Check on Your Images</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>To see if the <code>hello-world</code> container image is now on your
 computer, run:</p>
@@ -1414,7 +1414,7 @@ <h3 class="callout-title">Hello World, Part 2</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Use the same command as above, but with the <code>echo</code> command
 to print a message.</p>
@@ -1507,7 +1507,7 @@ <h3 class="callout-title">Practice Makes Perfect</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Solution 1 – Interactive </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>Run an interactive ubuntu container – you can use
 <code>docker image pull</code> first, or just run it with this
@@ -1545,7 +1545,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4"> Solution 2 – Run commands </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>Run a ubuntu container, first with a command to read out the Linux
 version:</p>
@@ -2225,7 +2225,7 @@ <h3 class="callout-title">Exercise: Searching for Help</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>A quick search should hopefully show that the way to install R on
 Alpine Linux is:</p>
@@ -2330,7 +2330,7 @@ <h3 class="callout-title">Exercise: Take a Guess</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Solution: </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Based on our experience above, edit the <code>Dockerfile</code> (in
 your text editor of choice) to look like this:</p>
@@ -2430,7 +2430,7 @@ <h3 class="callout-title">Exercise: Review!</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li><p>To see your new image, run <code>docker image ls</code>. You
@@ -3717,8 +3717,8 @@ <h3 class="callout-title">Key Points</h3>
   "url": "https://preview.carpentries.org/docker-introduction/instructor/aio.html",
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/aio.html",
   "dateCreated": "2024-08-16",
-  "dateModified": "2024-12-10",
-  "datePublished": "2024-12-10"
+  "dateModified": "2024-12-17",
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/creating-container-images.html b/instructor/creating-container-images.html
index 6c38c16a..234a3758 100644
--- a/instructor/creating-container-images.html
+++ b/instructor/creating-container-images.html
@@ -462,7 +462,7 @@ <h3 class="callout-title">Exercise: Searching for Help</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>A quick search should hopefully show that the way to install R on
 Alpine Linux is:</p>
@@ -563,7 +563,7 @@ <h3 class="callout-title">Exercise: Take a Guess</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Solution: </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Based on our experience above, edit the <code>Dockerfile</code> (in
 your text editor of choice) to look like this:</p>
@@ -657,7 +657,7 @@ <h3 class="callout-title">Exercise: Review!</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li><p>To see your new image, run <code>docker image ls</code>. You
 should see the name of your new container image under the “REPOSITORY”
@@ -871,7 +871,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/creating-container-images.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-09-12",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/discuss.html b/instructor/discuss.html
index 085547ce..d8527f0b 100644
--- a/instructor/discuss.html
+++ b/instructor/discuss.html
@@ -417,7 +417,7 @@ <h1>Discussion</h1>
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/discuss.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/docker-hub.html b/instructor/docker-hub.html
index a4edb615..74354373 100644
--- a/instructor/docker-hub.html
+++ b/instructor/docker-hub.html
@@ -656,7 +656,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/docker-hub.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/docker-image-examples.html b/instructor/docker-image-examples.html
index 58efc521..ba7e4659 100644
--- a/instructor/docker-image-examples.html
+++ b/instructor/docker-image-examples.html
@@ -507,7 +507,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/docker-image-examples.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-09-12",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/e01-github-actions.html b/instructor/e01-github-actions.html
index 69d2f766..99e1503d 100644
--- a/instructor/e01-github-actions.html
+++ b/instructor/e01-github-actions.html
@@ -648,7 +648,7 @@ <h1 id="reference-material">Reference material<a class="anchor" aria-label="anch
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/e01-github-actions.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/images.html b/instructor/images.html
index ecf8296b..3f49ecb8 100644
--- a/instructor/images.html
+++ b/instructor/images.html
@@ -474,8 +474,8 @@ <h3 id="introduction-figure-1">Figure 1</h3>
   "url": "https://preview.carpentries.org/docker-introduction/instructor/images.html",
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/images.html",
   "dateCreated": "2024-08-16",
-  "dateModified": "2024-12-10",
-  "datePublished": "2024-12-10"
+  "dateModified": "2024-12-17",
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/index.html b/instructor/index.html
index 0db0bb42..a01fed4e 100644
--- a/instructor/index.html
+++ b/instructor/index.html
@@ -815,8 +815,8 @@ <h3 id="a-quick-tutorial-on-copypasting-file-contents-from-episodes-of-the-lesso
   "url": "https://preview.carpentries.org/docker-introduction/instructor/index.html",
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/index.html",
   "dateCreated": "2024-08-16",
-  "dateModified": "2024-12-10",
-  "datePublished": "2024-12-10"
+  "dateModified": "2024-12-17",
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/instructor-notes.html b/instructor/instructor-notes.html
index 8bacb7c5..f8f657b6 100644
--- a/instructor/instructor-notes.html
+++ b/instructor/instructor-notes.html
@@ -742,8 +742,8 @@ <h3 id="learner-pathways">Learner Pathways<a class="anchor" aria-label="anchor"
   "url": "https://preview.carpentries.org/docker-introduction/instructor/instructor-notes.html",
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/instructor-notes.html",
   "dateCreated": "2024-08-16",
-  "dateModified": "2024-12-10",
-  "datePublished": "2024-12-10"
+  "dateModified": "2024-12-17",
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/introduction.html b/instructor/introduction.html
index 118a7f9c..dc5ed384 100644
--- a/instructor/introduction.html
+++ b/instructor/introduction.html
@@ -693,7 +693,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/introduction.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-09-12",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/key-points.html b/instructor/key-points.html
index 89194dc6..26f227c2 100644
--- a/instructor/key-points.html
+++ b/instructor/key-points.html
@@ -562,8 +562,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://preview.carpentries.org/docker-introduction/instructor/key-points.html",
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/key-points.html",
   "dateCreated": "2024-08-16",
-  "dateModified": "2024-12-10",
-  "datePublished": "2024-12-10"
+  "dateModified": "2024-12-17",
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/managing-containers.html b/instructor/managing-containers.html
index eeefa645..343a6dab 100644
--- a/instructor/managing-containers.html
+++ b/instructor/managing-containers.html
@@ -646,7 +646,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/managing-containers.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/meet-docker.html b/instructor/meet-docker.html
index 316e4395..2f73fc71 100644
--- a/instructor/meet-docker.html
+++ b/instructor/meet-docker.html
@@ -834,7 +834,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/meet-docker.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-09-12",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/profiles.html b/instructor/profiles.html
index f08bc8d0..d4d975d6 100644
--- a/instructor/profiles.html
+++ b/instructor/profiles.html
@@ -473,8 +473,8 @@ <h1>Learner Profiles</h1>
   "url": "https://preview.carpentries.org/docker-introduction/instructor/profiles.html",
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/profiles.html",
   "dateCreated": "2024-08-16",
-  "dateModified": "2024-12-10",
-  "datePublished": "2024-12-10"
+  "dateModified": "2024-12-17",
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/reference.html b/instructor/reference.html
index bac974b7..0c788989 100644
--- a/instructor/reference.html
+++ b/instructor/reference.html
@@ -610,7 +610,7 @@ <h1>Glossary</h1>
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/reference.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-09-12",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/reproduciblity.html b/instructor/reproduciblity.html
index be505ad0..36b7b9b8 100644
--- a/instructor/reproduciblity.html
+++ b/instructor/reproduciblity.html
@@ -708,7 +708,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/reproduciblity.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-09-12",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/instructor/running-containers.html b/instructor/running-containers.html
index 362835de..95b9aa5a 100644
--- a/instructor/running-containers.html
+++ b/instructor/running-containers.html
@@ -475,7 +475,7 @@ <h3 class="callout-title">Exercise: Check on Your Images</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>To see if the <code>hello-world</code> container image is now on your
 computer, run:</p>
@@ -618,7 +618,7 @@ <h3 class="callout-title">Hello World, Part 2</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Use the same command as above, but with the <code>echo</code> command
 to print a message.</p>
@@ -707,7 +707,7 @@ <h3 class="callout-title">Practice Makes Perfect</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Solution 1 – Interactive </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>Run an interactive ubuntu container – you can use
 <code>docker image pull</code> first, or just run it with this
@@ -745,7 +745,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4"> Solution 2 – Run commands </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>Run a ubuntu container, first with a command to read out the Linux
 version:</p>
@@ -876,7 +876,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/instructor/running-containers.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/introduction.html b/introduction.html
index 08201436..4e2bcaf8 100644
--- a/introduction.html
+++ b/introduction.html
@@ -691,7 +691,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/introduction.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-09-12",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/key-points.html b/key-points.html
index fd25c42c..40c293fc 100644
--- a/key-points.html
+++ b/key-points.html
@@ -552,8 +552,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://preview.carpentries.org/docker-introduction/key-points.html",
   "identifier": "https://preview.carpentries.org/docker-introduction/key-points.html",
   "dateCreated": "2024-08-16",
-  "dateModified": "2024-12-10",
-  "datePublished": "2024-12-10"
+  "dateModified": "2024-12-17",
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/managing-containers.html b/managing-containers.html
index cc628c69..faff8edf 100644
--- a/managing-containers.html
+++ b/managing-containers.html
@@ -644,7 +644,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/managing-containers.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/meet-docker.html b/meet-docker.html
index abf8ffeb..370b7ffe 100644
--- a/meet-docker.html
+++ b/meet-docker.html
@@ -832,7 +832,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/meet-docker.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-09-12",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/pkgdown.yml b/pkgdown.yml
index 46e802c1..a405f915 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -2,4 +2,4 @@ pandoc: 3.1.11
 pkgdown: 2.1.1
 pkgdown_sha: ~
 articles: {}
-last_built: 2024-12-10T01:03Z
+last_built: 2024-12-17T01:02Z
diff --git a/profiles.html b/profiles.html
index 8c3f948f..25fcffb6 100644
--- a/profiles.html
+++ b/profiles.html
@@ -473,8 +473,8 @@ <h1>Learner Profiles</h1>
   "url": "https://preview.carpentries.org/docker-introduction/profiles.html",
   "identifier": "https://preview.carpentries.org/docker-introduction/profiles.html",
   "dateCreated": "2024-08-16",
-  "dateModified": "2024-12-10",
-  "datePublished": "2024-12-10"
+  "dateModified": "2024-12-17",
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/reference.html b/reference.html
index 3c52114c..bc4dc9b9 100644
--- a/reference.html
+++ b/reference.html
@@ -608,7 +608,7 @@ <h1>Glossary</h1>
   "identifier": "https://preview.carpentries.org/docker-introduction/reference.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-09-12",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/reproduciblity.html b/reproduciblity.html
index e94c2d25..7053ec2c 100644
--- a/reproduciblity.html
+++ b/reproduciblity.html
@@ -706,7 +706,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/reproduciblity.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-09-12",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>
diff --git a/running-containers.html b/running-containers.html
index 334e6203..3748e42a 100644
--- a/running-containers.html
+++ b/running-containers.html
@@ -473,7 +473,7 @@ <h3 class="callout-title">Exercise: Check on Your Images</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>To see if the <code>hello-world</code> container image is now on your
 computer, run:</p>
@@ -616,7 +616,7 @@ <h3 class="callout-title">Hello World, Part 2</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Use the same command as above, but with the <code>echo</code> command
 to print a message.</p>
@@ -705,7 +705,7 @@ <h3 class="callout-title">Practice Makes Perfect</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Solution 1 – Interactive </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>Run an interactive ubuntu container – you can use
 <code>docker image pull</code> first, or just run it with this
@@ -743,7 +743,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4"> Solution 2 – Run commands </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>Run a ubuntu container, first with a command to read out the Linux
 version:</p>
@@ -874,7 +874,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://preview.carpentries.org/docker-introduction/running-containers.html",
   "dateCreated": "2024-08-16",
   "dateModified": "2024-06-18",
-  "datePublished": "2024-12-10"
+  "datePublished": "2024-12-17"
 }
 
   </script><script>