update changelog

Author: bleykauf

CHANGELOG.md

@@ -5,10 +5,10 @@ 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 this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [v2.0.2]
 
 ### Fixed
 
 * Don't use setuptools_scm & specify version manually by @doronbehar in https://github.com/linien-org/pyrp3/pull/14
 
-[Unreleased]: https://github.com/linien-org/pyrp3/compare/v2.0.1...HEAD
+[v2.0.2]: https://github.com/linien-org/pyrp3/compare/v2.0.1...v2.0.2