[TASK] Update NEWS.md for system categories

The following changes to system categories should be mentioned
in NEWS.md:

* activation by default on pages and tt_content tables
* new menu types for categories-based menus

Resolves: #54368
Releases: 6.2
Change-Id: I1ca95ea6354f52a68bd31cf284d6a103563190a4
Reviewed-on: https://review.typo3.org/26362
Reviewed-by: Helmut Hummel
Tested-by: Helmut Hummel

NEWS.md

@@ -104,3 +104,14 @@ Example:
     <img src="fileadmin/xxxx.jpg" alt="Alt-Attribute" />
   and not
     <img src="fileadmin/xxxx.jpg" alt="Alt-Attribute" title="Alt-Attribute" />
+
+### System categories
+
+* Activated by default
+
+Pages and content elements are now categorizable by default.
+
+* New menu types
+
+The "Special Menus" content element type now offers the possibility to display
+a list of categorized pages or content elements.