Added .NET 6 to docs generation

Author: jamesmcroft

.github/workflows/docs.yml

@@ -18,12 +18,12 @@ on:
 
 jobs:
   generate-docs:
-  
+
     runs-on: windows-latest
 
     steps:
     - uses: actions/checkout@v2
-    
+
     - name: Setup .NET Core 3.1
       uses: actions/setup-dotnet@v1
       with:
@@ -33,17 +33,22 @@ jobs:
       uses: actions/setup-dotnet@v1
       with:
         dotnet-version: 5.0.x
-        
+
+    - name: Setup .NET 6.0
+      uses: actions/setup-dotnet@v1
+      with:
+        dotnet-version: 6.0.x
+
     - name: Setup DocFX
       uses: crazy-max/ghaction-chocolatey@v1
       with:
         args: install docfx
-    
+
     - name: DocFX Build
       working-directory: docs
       run: docfx .\docfx.json
       continue-on-error: false
-      
+
     - name: Publish
       if: github.event_name == 'push'
       uses: peaceiris/actions-gh-pages@v3