chore: Release Changelog v0.2.21

Author: andreas-vester

CHANGELOG.md

@@ -4,6 +4,8 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [0.2.21] - 2024-10-25
 ### Fixed
 - Re-established support for Python 3.9 [GH#69](https://github.com/andreas-vester/df2img/issues/69).
 
@@ -175,7 +177,8 @@ For more information about ``plotly``'s renderers, visit the respective website
 - Possibility to change column width and row height.
 - Possibility to change font size.
 
-[Unreleased]: https://github.com/andreas-vester/df2img/compare/v0.2.20...HEAD
+[Unreleased]: https://github.com/andreas-vester/df2img/compare/v0.2.21...HEAD
+[0.2.21]: https://github.com/andreas-vester/df2img/compare/v0.2.20...v0.2.21
 [0.2.20]: https://github.com/andreas-vester/df2img/compare/v0.2.19...v0.2.20
 [0.2.19]: https://github.com/andreas-vester/df2img/compare/v0.2.18...v0.2.19
 [0.2.18]: https://github.com/andreas-vester/df2img/compare/v0.2.17...v0.2.18