feat: add github action to deploy project

website/.github/workflows.deploy.yml

@@ -0,0 +1,34 @@
+name: Deploy to GitHub Pages
+
+on:
+  push:
+    branches: [ new-website ]
+  # To run this workflow manually from the Actions tab on GitHub.
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout your repository using git
+        uses: actions/checkout@v4
+      - name: Install, build, and upload your site
+        uses: withastro/action@v3
+        with:
+          path: website
+
+  deploy:
+    needs: build
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4

website/astro.config.mjs

@@ -8,7 +8,7 @@ import sitemap from "@astrojs/sitemap";
 
 // https://astro.build/config
 export default defineConfig({
-  site: "https://helix-editor.vercel.app",
+  site: "https://helix.github.io",
   vite: {
     optimizeDeps: { include: ["asciinema-player"] },
   },