Improve release notes

Author: JeroenDeDauw

README.md

@@ -56,10 +56,10 @@ employees for the [Wikidata project](https://wikidata.org/).
 
 ### 1.2.0 (2024-12-10)
 
-* Drop support for PHP 7.2, 7.3
-* Upgrade codesniffer rules to current `mediawiki/mediawiki-codesniffer` version (45.0.0)
-* Make nullable type parameter declarations explicit for compatibility with PHP 8.4
-* Start testing with modern versions of PHP (8.1-8.4)
+* Dropped support for PHP 7.2 and PHP 7.3
+* Improved support for PHP 8.4 by explicitly declaring nullable types
+* Upgraded codesniffer rules to current `mediawiki/mediawiki-codesniffer` version (45.0.0)
+* Added testing with PHP 8.1 up to 8.4
 
 ### 1.1.0 (2022-10-21)