chore(README): update local development command from pnpm to yarn

thomasbnt · thomasbnt · commit 3a8800be113b · 2025-07-02T19:02:29.000+02:00
diff --git a/README.md b/README.md
@@ -8,7 +8,7 @@
 
 For running locally, you'll need [Node.js](https://nodejs.org/en/) installed.
 ```
-pnpm run dev
+yarn run dev
 ```
 
 ## 🚀 Project Structure
