feat: add workflow to deploy to GitHub Pages

.github/workflows/deploy.yaml

@@ -0,0 +1,39 @@
+name: Deploy to GitHub Pages
+
+on:
+  push:
+    branches: ["main"]
+  workflow_dispatch:
+
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup GitHub Pages
+        uses: actions/configure-pages@v5
+
+      - name: Render HTML
+        run: make docker ARGS=html
+
+      - name: Upload HTML output content
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: output/
+
+  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@v4