Update the command to install the bundle

Author: javiereguiluz

bundles.rst

@@ -204,7 +204,7 @@ Then, in your application, install the bundle as usual:
 
 .. code-block:: terminal
 
-    $ composer update acme/blog-bundle
+    $ composer require acme/blog-bundle
 
 Composer will create a symbolic link (symlink) to your local bundle directory,
 so any change you make in the ``AcmeBlogBundle/`` directory is immediately