Add deployment for gh pages

.github/workflows/docs.yml

@@ -0,0 +1,41 @@
+name: docs
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - "packages/docs/**"
+      - ".github/workflows/docs.yml"
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.ref }}
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: lts
+      - name: Cache dependencies
+        uses: actions/cache@v3
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-
+      - name: Install
+        working-directory: ./packages/docs
+        run: npm ci
+      - name: Build docs
+        working-directory: ./packages/docs
+        run: npm run build
+      - name: Deploy to gh-pages
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./packages/docs/docs/dist