Update index.md

I have updated the actions script because old version was not working properly in the newest versions of docfx. It now uses official upload pages actions instead of relying on the third party one. And now the default path is correct for website deployment: 'docfx_project/_site' instead of 'docs/_site'.

docs/index.md

@@ -48,9 +48,29 @@ This example uses [`peaceiris/actions-gh-pages`](https://github.com/marketplace/
 
 ```yaml
 # Your GitHub workflow file under .github/workflows/
-
+# Trigger the action on push to main
+on:
+  push:
+    branches:
+      - main
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
+# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
 jobs:
   publish-docs:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
@@ -63,11 +83,16 @@ jobs:
     - run: dotnet tool update -g docfx
     - run: docfx docfx_project/docfx.json
 
-    - name: Deploy
-      uses: peaceiris/actions-gh-pages@v3
+    - name: Setup Pages
+      uses: actions/configure-pages@v3
+    - name: Upload artifact
+      uses: actions/upload-pages-artifact@v2
       with:
-        github_token: ${{ secrets.GITHUB_TOKEN }}
-        publish_dir: docs/_site
+        # Upload entire repository
+        path: 'docfx_project/_site'
+    - name: Deploy to GitHub Pages
+      id: deployment
+      uses: actions/deploy-pages@v2
 ```
 
 ## Use the NuGet Library