Update CHANGELOG.md

Author: raar1

CHANGELOG.md

@@ -5,7 +5,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [1.2.4] - 2021-03-04
-* Fixed bug where user rdf was being mutated during publishing.
+
+### Fixed
+* Fix bug where user rdf was being mutated during publishing.
 
 ## [1.2.3] - 2021-02-05