Update changelog for 0.5.2

Author: object-Object

CHANGELOG.md

@@ -4,6 +4,13 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/) and [Pydantic's HISTORY.md](https://github.com/pydantic/pydantic/blob/main/HISTORY.md), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## `0.5.2` - 2025-09-02
+
+### Fixed
+
+* Improved rendering support for [GitHub Flavored Markdown](https://github.github.com/gfm/).
+* Fixed an issue in Markdown descriptions where a backslash was visible before [hard line breaks](https://spec.commonmark.org/0.30/#hard-line-breaks).
+
 ## `0.5.1` - 2025-09-01
 
 ### Changed