updated changelog

Author: Stephan Dilly

CHANGELOG.md

@@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - more natural scrolling in log tab ([#52](https://github.com/extrawurst/gitui/issues/52))
 
 ### Fixed
+- crash on commit when git name was not set ([#74](https://github.com/extrawurst/gitui/issues/74))
 - log tab shown empty in single commit repos ([#75](https://github.com/extrawurst/gitui/issues/75))
 
 ## [0.2.6] - 2020-05-18