update changelog

Author: Stephan Dilly

CHANGELOG.md

@@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - added gitui to [chocolatey](https://chocolatey.org/packages/gitui) on windows by [@nils-a](https://github.com/nils-a)
 - added gitui gentoo instructions to readme [[@dm9pZCAq](https://github.com/dm9pZCAq)] ([#430](https://github.com/extrawurst/gitui/pull/430))
 - added windows installer (msi) to release [[@pm100](https://github.com/pm100)] ([#360](https://github.com/extrawurst/gitui/issues/360))
+- copy commit hash [[@yanganto](https://github.com/yanganto)] ([#281](https://github.com/extrawurst/gitui/issues/281))
 - push to remote ([#265](https://github.com/extrawurst/gitui/issues/265)) ([#267](https://github.com/extrawurst/gitui/issues/267))
 
 ![push](assets/push.gif)