Update Changelog

Author: stefanzweifel

CHANGELOG.md

@@ -6,6 +6,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased](https://github.com/stefanzweifel/git-auto-commit-action/compare/v2.5.0...HEAD)
 
+### Added
+- Add `commit_user_name`, `commit_user_email` and `commit_author` input options for full customzation on how the commit is being created [#39](https://github.com/stefanzweifel/git-auto-commit-action/pull/39)
+
 ### Removed
 - Remove the need of a GITHUB_TOKEN. Users now have to use `actions/checkout@v2` or higher [#36](https://github.com/stefanzweifel/git-auto-commit-action/pull/36)