add docs deployments

.github/workflows/docs.yml

@@ -0,0 +1,42 @@
+name: Docs
+
+# Trigger this Action when new code is pushed to the main branch
+on:
+  push:
+    branches:
+      - vnext
+
+# We need some permissions to publish to Github Pages
+permissions:
+  contents: write
+  pages: write
+  id-token: write
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 8.0.x
+      - name: Restore tools
+        run: dotnet tool restore
+      - name: Build code
+        run: dotnet build -c Release
+      - name: Generate the documentation'
+        run: dotnet fsdocs build --properties Configuration=Release
+      - name: Upload documentation
+        uses: actions/upload-pages-artifact@v2
+        with:
+          path: ./output
+
+  # GitHub Actions recommends deploying in a separate job.
+  deploy:
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v2