Update README: document Gitea Actions pages workflow

Replaces the GitHub Actions reference with .gitea/workflows/pages.yml,
following the sln-school-comparison deployment pattern. Documents the
git-pages.civilytics.org/crdc-demo/ URL and token configuration.

README.md

@@ -74,15 +74,20 @@ crdc-demo/
 
 ## Deployment
 
-### Option A: Git Pages (self-hosted equivalent — recommended)
-The app is a static site. Upload the `dist/` directory to your self-hosted Git Pages server after building:
+### Option A: Git Pages via Gitea Actions (recommended)
+The app is a static site deployed automatically via Gitea Actions. On every push to `main`, the workflow in
+`.gitea/workflows/pages.yml` builds the Vite app and copies `dist/` to a `pages` branch served by the
+git-pages webhook receiver.
 
-```bash
-npm run build    # produces dist/
-# Upload dist/ contents to your git-pages host
-```
+**URL**: `https://pages.civilytics.org/crdc-demo/`
 
-For CI/CD, see `.github/workflows/deploy.yml` which builds and uploads artifacts automatically on push to `main`.
+The workflow follows the same pattern as `Civilytics/sln-school-comparison`:
+1. Triggers on push to `main` (only when source files change)
+2. Builds with Node 22 + Vite (`npm ci && npm run build`)
+3. Copies `dist/` contents to an orphan `pages` branch
+4. Forces push — the git-pages webhook picks it up automatically
+
+> **Note**: Ensure `${{ secrets.GITHUB_TOKEN }}` is configured in repo settings on gitea.civilytics.org.
 
 ### Option B: Docker (self-hosted fleet)
 Build and run the nginx container on your infrastructure (`efron`, `maxwell`, etc.):