Update CHANGELOG.md

Author: GrahamCampbell

CHANGELOG.md

@@ -10,6 +10,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * Added support for user memberships
 * Add support for the following projects parameters: id_after, id_before, last_activity_after, last_activity_before, repository_checksum_failed, repository_storage, wiki_checksum_failed, with_custom_attributes, with_programming_language
 
+[11.2.0]: https://github.com/GitLabPHP/Client/compare/11.1.0...11.2.0
+
 ## [11.1.0] - 2021-01-25
 
 * Added CI schedule variables endpoints