set up autodeploy

.github/workflows/deploy.yml

@@ -0,0 +1,42 @@
+name: Deploy main
+on:
+  push:
+    branches:
+      - main
+      - staging
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+jobs:
+  build:
+    runs-on: 
+    permissions:
+      contents: read
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Use Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: '20.x'
+      - run: npm ci
+      - run: npm run build
+      - run: mv dist _site
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v2
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v2