readme : mise à jour setup et php cs fixer

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

README.md

@@ -1,36 +1,30 @@
-<img src="http://getkirby.com/assets/images/github/plainkit.jpg" width="300">
+# Setup the project
 
-**Kirby: the CMS that adapts to any project, loved by developers and editors alike.**
+Requirements: PHP 8.4+, Composer, Node.js/npm.
-The Plainkit is a minimal Kirby setup with the basics you need to start a project from scratch. It is the ideal choice if you are already familiar with Kirby and want to start step-by-step.
 
-You can learn more about Kirby at [getkirby.com](https://getkirby.com).
+## Install the dependencies
 
-### Try Kirby for free
+```bash
+composer install
+npm install
+```
 
-You can try Kirby and the Plainkit on your local machine or on a test server as long as you need to make sure it is the right tool for your next project. … and when you’re convinced, [buy your license](https://getkirby.com/buy).
+## Start the local server
 
-### Get going
+```bash
+npm run serve
+```
 
-Read our guide on [how to get started with Kirby](https://getkirby.com/docs/guide/quickstart).
+Opens [localhost:3000](http://localhost:3000) (BrowserSync + PHP server on port 8000).
 
-You can [download the latest version](https://github.com/getkirby/plainkit/archive/main.zip) of the Plainkit.
+## PHP code style
-If you are familiar with Git, you can clone Kirby's Plainkit repository from Github.
 
-    git clone https://github.com/getkirby/plainkit.git
+The project uses [PHP CS Fixer](https://github.com/PHP-CS-Fixer/PHP-CS-Fixer) to format PHP code (PSR-12, single quotes, `=>` alignment).
 
-## What's Kirby?
+**Format on save with VS Code / VS Codium:** install the [`junstyle.php-cs-fixer`](https://marketplace.visualstudio.com/items?itemName=junstyle.php-cs-fixer) extension. The workspace config (`.vscode/settings.json`) automatically points to `vendor/bin/php-cs-fixer`.
 
--   **[getkirby.com](https://getkirby.com)** – Get to know the CMS.
+**Run manually:**
--   **[Try it](https://getkirby.com/try)** – Take a test ride with our online demo. Or download one of our kits to get started.
--   **[Documentation](https://getkirby.com/docs/guide)** – Read the official guide, reference and cookbook recipes.
--   **[Issues](https://github.com/getkirby/kirby/issues)** – Report bugs and other problems.
--   **[Feedback](https://feedback.getkirby.com)** – You have an idea for Kirby? Share it.
--   **[Forum](https://forum.getkirby.com)** – Whenever you get stuck, don't hesitate to reach out for questions and support.
--   **[Discord](https://chat.getkirby.com)** – Hang out and meet the community.
--   **[Mastodon](https://mastodon.social/@getkirby)** – Spread the word.
--   **[Bluesky](https://bsky.app/profile/getkirby.com)** – Spread the word.
 
----
+```bash
-
+./vendor/bin/php-cs-fixer fix
-© 2009 Bastian Allgeier
+```
-[getkirby.com](https://getkirby.com) · [License agreement](https://getkirby.com/license)