docs(readme): update readme, replace npm with yarn

README.md

@@ -28,29 +28,30 @@ configuration](https://config.phundrak.com/emacs/packages/programming#web-progra
 ## Project Setup
 
 ```sh
-npm install
+yarn set version stable
+yarn
 ```
 
 ### Compile and Hot-Reload for Development
 
 ```sh
-npm run dev
+yarn dev
 ```
 
 ### Type-Check, Compile and Minify for Production
 
 ```sh
-npm run build
+yarn build
 ```
 
 ### Run Unit Tests with [Vitest](https://vitest.dev/)
 
 ```sh
-npm run test:unit
+yarn test:unit
 ```
 
 ### Lint with [ESLint](https://eslint.org/)
 
 ```sh
-npm run lint
+yarn lint
 ```