Update changelog

CHANGELOG.md

@@ -5,6 +5,20 @@ 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).
 
+## [0.2.0] — 2021-05-07
+
+### Changed
+
+- `WizardRepository` implementations no longer throw an exception when trying to delete
+  a wizard that doesn’t exist. (#1)
+
+### Fixed
+
+- Data from last step is now available in action (#2)
+- Fix crashing migration in MySQL 8 (#3). This was due to the fact that MySQL 8 doesn't
+  support default values on JSON columns. Since a wizard always gets created
+  with at least an empty array as its data, this can safely be removed.
+
 ## [0.1.0] — 2021-05-04
 
 Initial release