remove space on acces control example

Tim59 · Tim59 · commit ed3dcb9e6d4f · 2018-10-08T14:40:16.000+02:00
diff --git a/core/operations.md b/core/operations.md
@@ -464,7 +464,7 @@ class Question
 
 ### Access Control of Subresources
 
-The `subresourceOperations` attribute also allows you to add an access control on each path with the attribute `access_control `.
+The `subresourceOperations` attribute also allows you to add an access control on each path with the attribute `access_control`.
 
 ```php
 <?php
