diff --git a/README.md b/README.md
index 6eececa..50721f1 100644
--- a/README.md
+++ b/README.md
@@ -25,22 +25,22 @@ await
 
     // Parse each file into Roslyn `SyntaxTree`.
     .ThenForAll(new SyntaxTreeParserPipe())
-    
+
     // Parse each `SyntaxTree` into `Doc`.
     .ThenForAll(new DocumentParserPipe())
-    
+
     // Merge multiple docs into single doc.
-    .Flatten(Doc.Merge)
-    
+    .Then(new FlattenPipe<Doc>(Doc.Merge))
+
     // Remove non-public types and members.
     .Then(new PublicFilterPipe())
-    
+
     // Render the `Doc` into series of Markdown files (one file for each type).
     .Then(new MarkdownRenderPipe())
-    
+
     // Save each Markdown file into separate file.
     .ThenForAll(new SavePipe<Markdown>(output, x => (x.Name, x.Content)))
-    
+
     // Execute the pipeline.
     .Run();
 ```
diff --git a/src/Core/Core.csproj b/src/Core/Core.csproj
index 36abe01..6d71e64 100644
--- a/src/Core/Core.csproj
+++ b/src/Core/Core.csproj
@@ -12,14 +12,15 @@
     </PropertyGroup>
 
     <PropertyGroup>
-        <AssemblyVersion>0.0.1</AssemblyVersion>
-        <FileVersion>0.0.1</FileVersion>
-        <PackageVersion>0.0.1</PackageVersion>
+        <AssemblyVersion>0.0.2</AssemblyVersion>
+        <FileVersion>0.0.2</FileVersion>
+        <PackageVersion>0.0.2</PackageVersion>
 
         <Title>Summary</Title>
         <Description>The flexible and effortless API reference generator for .NET.</Description>
         <RepositoryUrl>https://github.com/joshua-light/summary</RepositoryUrl>
 
+        <PackageReadmeFile>README.md</PackageReadmeFile>
         <PackageIcon>icon.png</PackageIcon>
         <PackageTags>docs;doc;documentation;documentation generator;api reference;roslyn</PackageTags>
         <PackageLicenseExpression>MIT</PackageLicenseExpression>
diff --git a/src/Plugins/Markdown/Markdown.csproj b/src/Plugins/Markdown/Markdown.csproj
index ed5e0a8..5667813 100644
--- a/src/Plugins/Markdown/Markdown.csproj
+++ b/src/Plugins/Markdown/Markdown.csproj
@@ -10,14 +10,15 @@
     </PropertyGroup>
 
     <PropertyGroup>
-        <AssemblyVersion>0.0.1</AssemblyVersion>
-        <FileVersion>0.0.1</FileVersion>
-        <PackageVersion>0.0.1</PackageVersion>
+        <AssemblyVersion>0.0.2</AssemblyVersion>
+        <FileVersion>0.0.2</FileVersion>
+        <PackageVersion>0.0.2</PackageVersion>
 
         <Title>Summary.Markdown</Title>
         <Description>Markdown plugin for Summary documentation generator.</Description>
         <RepositoryUrl>https://github.com/joshua-light/summary</RepositoryUrl>
 
+        <PackageReadmeFile>README.md</PackageReadmeFile>
         <PackageIcon>icon.png</PackageIcon>
         <PackageTags>docs;doc;documentation;documentation generator;api reference;roslyn;markdown</PackageTags>
         <PackageLicenseExpression>MIT</PackageLicenseExpression>
diff --git a/src/Plugins/Roslyn/Roslyn.csproj b/src/Plugins/Roslyn/Roslyn.csproj
index 7777a6f..8eb2a56 100644
--- a/src/Plugins/Roslyn/Roslyn.csproj
+++ b/src/Plugins/Roslyn/Roslyn.csproj
@@ -10,14 +10,15 @@
     </PropertyGroup>
 
     <PropertyGroup>
-        <AssemblyVersion>0.0.1</AssemblyVersion>
-        <FileVersion>0.0.1</FileVersion>
-        <PackageVersion>0.0.1</PackageVersion>
+        <AssemblyVersion>0.0.2</AssemblyVersion>
+        <FileVersion>0.0.2</FileVersion>
+        <PackageVersion>0.0.2</PackageVersion>
 
         <Title>Summary.Roslyn</Title>
         <Description>Plugin for Summary documentation generator that parses documentation using Roslyn API.</Description>
         <RepositoryUrl>https://github.com/joshua-light/summary</RepositoryUrl>
 
+        <PackageReadmeFile>README.md</PackageReadmeFile>
         <PackageIcon>icon.png</PackageIcon>
         <PackageTags>docs;doc;documentation;documentation generator;api reference;roslyn</PackageTags>
         <PackageLicenseExpression>MIT</PackageLicenseExpression>