new line

https://insight.sensiolabs.com/projects/cf3d97c6-e026-4489-8493-a3f4a1e75a68/analyses/23?status=violations#186050844

README.md

@@ -48,4 +48,4 @@ in the [Submitting a Patch][2] section and use the [Pull Request Template][3].
 
 [1]: http://symfony.com/doc/current/contributing/code/index.html
 [2]: http://symfony.com/doc/current/contributing/code/patches.html#check-list
-[3]: http://symfony.com/doc/current/contributing/code/patches.html#make-a-pull-request
+[3]: http://symfony.com/doc/current/contributing/code/patches.html#make-a-pull-request