Additional correction of CHANGELOG.md

Author: hbldh

CHANGELOG.md

@@ -4,7 +4,7 @@ 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).
 
-## [1.6.0] (2021-01-22)
+## [1.6.0] (2021-12-09)
 
 ### Added
 
@@ -109,8 +109,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Initial release
 
-
-[Unreleased]: https://github.com/hbldh/pyefd/compare/HEAD...v1.5.1
+[Unreleased]: https://github.com/hbldh/pyefd/compare/v1.6.0...HEAD
+[1.6.0]: https://github.com/hbldh/pyefd/compare/v1.5.1...v1.6.0
 [1.5.1]: https://github.com/hbldh/pyefd/compare/v1.4.1...v1.5.1
 [1.4.1]: https://github.com/hbldh/pyefd/compare/v1.4.0...v1.4.1
 [1.4.0]: https://github.com/hbldh/pyefd/compare/v1.3.0...v1.4.0