minor #873 Update code example (DylanDelobel)

This PR was merged into the 1.0-dev branch.

Discussion
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Update code example

To keep composer convention

`composer require --dev XXXX`

Commits
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9158092 Update code example

Author: weaverryan

src/Resources/doc/index.rst

@@ -15,7 +15,7 @@ Run this command to install and enable this bundle in your application:
 
 .. code-block:: terminal
 
-    $ composer require symfony/maker-bundle --dev
+    $ composer require --dev symfony/maker-bundle
 
 Usage
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