feat: add GitHub Actions workflow for website deployment

Author: cunoe

.github/workflows/deploy.yml

@@ -0,0 +1,17 @@
+name: deploy website
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: amondnet/vercel-action@v25
+        with:
+          vercel-token: ${{ secrets.VERCEL_TOKEN }}
+          vercel-org-id: ${{ secrets.ORG_ID}}
+          vercel-project-id: ${{ secrets.PROJECT_ID}}
+          vercel-args: "--prod"