chore: simplify README and rename hello-world script

README.md

@@ -1,47 +1,7 @@
 # Deploy Me
 
-A minimal PHP application for testing [deployer-php](https://github.com/loadinglucian/deployer-php). Use this as a reference project or deploy target when following the package documentation.
-
-## What's Inside
-
-- Single `index.php` entry point displaying an environment variable
-- Tailwind CSS (v4) compiled via Vite
-- Confetti celebration on page load
-
-## Local Setup
-
-```bash
-composer install
-bun install        # or: npm install
-```
-
-### Development
-
-```bash
-bun run dev        # starts Vite on localhost:5173
-php -S localhost:8000
-```
-
-The PHP app auto-detects the Vite dev server and loads assets from it with hot reload.
-
-### Production
-
-```bash
-bun run build      # or: npm run build
-```
-
-Outputs to `dist/` with a manifest. The PHP reads this manifest automatically — no config needed.
-
-## Environment
-
-Create a `.env` file:
-
-```env
-APP_MESSAGE="Yay, confetti! 🎉"
-```
-
-This message displays on the page.
+A minimal PHP application used for CI integration testing of [deployer-php](https://github.com/loadinglucian/deployer-php)
 
 ## License
 
-MIT License - see [LICENSE](LICENSE) for details.
+This is open-source software distributed under the [MIT License](/LICENSE).