[DOCS] Complete new pagination changelog rst

Add missing pagination example to feature rst.
Only paginator is not enough to actually create a new pagination.

Relates: #89603
Releases: master, 10.4
Change-Id: Ie6852b76fb79f131d3b8553640ef29ab60e072de
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/69723


Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Benni Mack <benni@typo3.org>

typo3/sysext/core/Documentation/Changelog/10.2/Feature-89603-IntroduceNativePaginationForLists.rst

@@ -36,6 +36,7 @@ Code-Example for the :php:`ArrayPaginator`:
 .. code-block:: php
 
    // use TYPO3\CMS\Core\Pagination\ArrayPaginator;
+   // use TYPO3\CMS\Core\Pagination\SimplePagination;
 
    $itemsToBePaginated = ['apple', 'banana', 'strawberry', 'raspberry', 'ananas'];
    $itemsPerPage = 2;
@@ -47,4 +48,11 @@ Code-Example for the :php:`ArrayPaginator`:
    $paginator->getKeyOfFirstPaginatedItem(); // returns 4
    $paginator->getKeyOfLastPaginatedItem(); // returns 4
 
+   $pagination = new SimplePagination($paginator);
+   $pagination->getAllPageNumbers(); // returns [1, 2, 3]
+   $pagination->getPreviousPageNumber(); // returns 2
+   $pagination->getNextPageNumber(); // returns null
+
+   // …
+
 .. index:: PHP-API, ext:core