Add github page deploy flow

Signed-off-by: Daishan Peng <[email protected]>

.github/workflows/doc.yml

@@ -0,0 +1,40 @@
+name: Docs
+
+on:
+  workflow_dispatch:
+  push:
+      branches:
+        - main
+
+jobs:
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    permissions:
+      pages: write
+      id-token: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 18.x
+          cache: yarn
+          cache-dependency-path: docs/yarn.lock
+      - name: Build
+        run: |
+          cd docs
+          yarn install --frozen-lockfile --non-interactive
+          yarn build
+      - name: Setup Pages
+        uses: actions/configure-pages@v5
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: docs/build
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4