Merge branch 'master' of github.com:voku/Simple-PHP-Code-Parser

* 'master' of github.com:voku/Simple-PHP-Code-Parser:
  Update README.md

Author: voku

README.md

@@ -28,7 +28,7 @@ We will use:
 ### Install via "composer require"
 
 ```shell
-composer require voku/simple-php-code-parser
+composer require --dev voku/simple-php-code-parser
 ```
 
 ### Quick Start