[TASK] Correct removed class alias (Controller vs. AsController) (#5046)

* [TASK] Correct removed class alias (Controller vs. AsController)

Resolves: [TYPO3-Documentation/Changelog-To-Doc#1160](TYPO3-Documentation/Changelog-To-Doc#1160)
Releases: main

* Update Documentation/ExtensionArchitecture/HowTo/BackendModule/CreateModuleWithExtbase.rst

---------

Co-authored-by: Lina Wolf <[email protected]>

Author: Alagts

Documentation/ExtensionArchitecture/HowTo/BackendModule/CreateModuleWithExtbase.rst

@@ -48,6 +48,10 @@ controller:
     A backend controller should be tagged with the
     :php:`\TYPO3\CMS\Backend\Attribute\AsController` (php:`#[AsController]`) attribute.
 
+..  versionchanged:: 14.0
+	The class alias for :php:`\TYPO3\CMS\Backend\Attribute\Controller` has been
+	removed. :php:`\TYPO3\CMS\Backend\Attribute\AsController` is still in place.
+
 After that you can add titles, menus and buttons using :php:`ModuleTemplate`:
 
 .. code-block:: php