docs: Update changelog for version 0.2.1

CHANGELOG.md

@@ -4,6 +4,14 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [0.2.1](https://github.com/pawamoy/copier-pdm/releases/tag/0.2.1) - 2021-05-08
+
+<small>[Compare with 0.2.0](https://github.com/pawamoy/copier-pdm/compare/0.2.0...0.2.1)</small>
+
+### Bug Fixes
+- Fix mypy warnings in docs/macros.py ([517b0ba](https://github.com/pawamoy/copier-pdm/commit/517b0ba7d9fd44416c0698603fca352c6d7e4726) by Timothée Mazzucotelli).
+
+
 ## [0.2.0](https://github.com/pawamoy/copier-pdm/releases/tag/0.2.0) - 2021-05-08
 
 <small>[Compare with 0.1.3](https://github.com/pawamoy/copier-pdm/compare/0.1.3...0.2.0)</small>