Add pages workflow

.github/workflows/pages.yml

@@ -0,0 +1,32 @@
+name: GitHub build pages
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  deploy:
+    name: Build and deploy GH pages
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.ref }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Setup Node
+        uses: actions/setup-node@v3
+        with:
+          node-version: '18'
+
+      - name: Build
+        run: npm ci && npm run publish
+
+      - name: Deploy
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./dist