Added Yarn install

README.md

@@ -18,7 +18,7 @@ To report bugs use [engelsystem/issues](https://github.com/engelsystem/engelsyst
 
 ### Directions:
  * Clone the master branch: `git clone https://github.com/engelsystem/engelsystem.git`
- * Install [Composer](https://getcomposer.org/download/)
+ * Install [Composer](https://getcomposer.org/download/) and [Yarn](https://yarnpkg.com/en/docs/install)
  * Install project dependencies:
      ```bash
      composer install
@@ -28,7 +28,6 @@ To report bugs use [engelsystem/issues](https://github.com/engelsystem/engelsyst
     ```bash
     composer install --no-dev
     composer dump-autoload --optimize
-    
     ```
     to install the engelsystem
  * Build the frontend assets