build: 👷 remove use of renv for building site (#180)

## Description

While I like the idea of renv for many things, for building the website
and developing the material, it is a bit of a burden to debug and fix
issues. And for a course context, it isn't that important to have.

.github/workflows/build-website.yml

@@ -1,10 +1,13 @@
+name: Build website
+
 on:
   push:
-     branches:
-       - main
-
-name: build-deploy
-
+    branches:
+      - main
+    paths-ignore:
+      - '.vscode/**'
+      - '.github/**'
+
 jobs:
   build-deploy:
     runs-on: ubuntu-latest
@@ -17,16 +20,11 @@ jobs:
         with:
           use-public-rspm: true
 
-      - name: Install system dependencies
-        run: sudo apt install libcurl4-openssl-dev libgmp3-dev libglpk40
-
-      - name: Install package dependencies
-        uses: r-lib/actions/setup-renv@v2
+      - name: Install dependencies
+        uses: r-lib/actions/setup-r-dependencies@v2
 
       - name: Set up Quarto
         uses: quarto-dev/quarto-actions/setup@v2
-        with:
-          tinytex: false
 
       - name: Publish to Netlify (and render)
         uses: quarto-dev/quarto-actions/publish@v2

README.md

@@ -35,12 +35,12 @@ out in completing the exercises.
 
 The teaching material is found mainly in the project folders:
 
--   `preamble/`: Contains the syllabus and the schedule files.
--   `sessions/`: Contains the code-along teaching material, as well as
+- `preamble/`: Contains the syllabus and the schedule files.
+- `sessions/`: Contains the code-along teaching material, as well as
     associated links to the lecture slides.
--   `slides/`: Contains the slides, created as Revealjs HTML slides by
+- `slides/`: Contains the slides, created as Revealjs HTML slides by
     using Quarto.
--   `appendix/`: Contains the supplemental or secondary content.
+- `appendix/`: Contains the supplemental or secondary content.
 
 The website is generated from [Quarto](https://quarto.org), so follows
 the file and folder structure conventions from that package.
@@ -52,10 +52,8 @@ Packages used and depended on for this course are included in the
 root directory (where the `r-cubed-advanced.Rproj` file is located:
 
 ``` r
-# install.packages("renv")
-renv::install()
-# Or:
-renv::restore()
+# install.packages("pak")
+pak::pak()
 ```
 
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