feat: add GitHub Actions workflow for deploying documentation to GitHub Pages

Author: realybin

.github/workflows/gh-pages.yml

@@ -0,0 +1,41 @@
+on:
+  push:
+    branches:
+      - main
+
+permissions:
+  actions: 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
+      uses: actions/checkout@v3
+    - name: Dotnet Setup
+      uses: actions/setup-dotnet@v3
+      with:
+        dotnet-version: 8.x
+
+    - run: dotnet tool update -g docfx
+    - run: docfx docfx.json
+
+    - name: Upload artifact
+      uses: actions/upload-pages-artifact@v3
+      with:
+        # Upload entire repository
+        path: '_site'
+    - name: Deploy to GitHub Pages
+      id: deployment
+      uses: actions/deploy-pages@v4