Fix instructions on building the phar file

jakzal · jakzal · commit a5995c2e6217 · 2017-12-01T10:22:27.000Z
diff --git a/README.md b/README.md
@@ -48,7 +48,7 @@ need the [box-project/box2](https://github.com/box-project/box2) library.
 ``` bash
 $ git clone git@github.com:mmoreram/php-formatter.git
 $ cd php-formatter
-$ composer update
+$ composer update --no-dev
 $ box build -v
 $ build/php-formatter.phar
 ```
