Fixing link syntax

...I hope ;-)
It's rendered broken on https://symfony.com/doc/4.4/doctrine/custom_dql_functions.html

Author: ThomasLandauer

doctrine/custom_dql_functions.rst

@@ -5,7 +5,7 @@ How to Register custom DQL Functions
 ====================================
 
 Doctrine allows you to specify custom DQL functions. For more information
-on this topic, read Doctrine's cookbook article "`DQL User Defined Functions`_".
+on this topic, read Doctrine's cookbook article `DQL User Defined Functions`_.
 
 In Symfony, you can register your custom DQL functions as follows:
 
@@ -146,4 +146,4 @@ In Symfony, you can register your custom DQL functions as follows:
                 ],
             ]);
 
-.. _`DQL User Defined Functions`: https://www.doctrine-project.org/projects/doctrine-orm/en/current/cookbook/dql-user-defined-functions.html
+.. _DQL User Defined Functions: https://www.doctrine-project.org/projects/doctrine-orm/en/current/cookbook/dql-user-defined-functions.html