Add contribution page and Docker deployment

README.md

@@ -32,6 +32,27 @@ npm test
 npm run build
 ```
 
+### Docker
+Build and run the static production app with Nginx:
+
+```bash
+docker build \
+  --build-arg VITE_PLIMI_REPO_URL=https://github.com/your-org/plimi \
+  -t plimi:local .
+
+docker run --rm -p 8080:80 --name plimi plimi:local
+```
+
+Or use Docker Compose:
+
+```bash
+VITE_PLIMI_REPO_URL=https://github.com/your-org/plimi PLIMI_PORT=8080 docker compose up --build
+```
+
+Environment:
+- `VITE_PLIMI_REPO_URL`: build-time public repository URL shown on the Contribute page.
+- `PLIMI_PORT`: host port used by Docker Compose, default `8080`.
+
 ---
 
 ## How to Create a Tool (Plugin)