Add: publish docfx workflow

.github/workflows/publish-docfx.yml

@@ -0,0 +1,54 @@
+name: Publish DocFX
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+concurrency:
+  group: "pages"
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        
+      - name: Setup Pages
+        uses: actions/configure-pages@v3
+
+      - name: Setup Dotnet
+        uses: actions/setup-dotnet@v3
+        with:
+          dotnet-version: 7.0.x
+
+      - name: Setup DocFx
+        run: dotnet tool update -g docfx
+      
+      - name: Dotnet Restore
+        run: dotnet tool restore
+
+      - name: Build
+        run: docfx docs/docfx.json
+      
+      - name: Upload artifacts
+        uses: actions/upload-pages-artifact@v2
+        with:
+          path: docs/_site
+
+  deploy:
+    needs: build
+    permissions:
+      pages: write
+      id-token: write
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v2