[#3319] Linking to the whole method

Author: weaverryan

cookbook/security/acl_advanced.rst

@@ -48,9 +48,9 @@ your application. Each role, or user has its own security identity.
 .. versionadded:: 2.5
     For users, the security identity is based on the username. This means that,
     if for any reason, a user's username was to change, you must ensure its
-    security identity is updated too. The method ``updateUserSecurityIdentity``
-    of the :class:`Symfony\\Component\\Security\\Acl\\Dbal\\MutableAclProvider`
-    class is there to handle the update.
+    security identity is updated too. The
+    :method:`MutableAclProvider::updateUserSecurityIdentity <Symfony\\Component\\Security\\Acl\\Dbal\\MutableAclProvider::updateUserSecurityIdentity>`
+    ``updateUserSecurityIdentity`` method is there to handle the update.
 
 Database Table Structure
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