improve CHANGELOG.md

CHANGELOG.md

@@ -1,20 +1,18 @@
 # Changelog
+All notable changes to this project will be documented in this file.
 
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-
-## unreleased
+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).
 
+## [Unreleased](https://git.d3data.de/D3Public/sortedMenus/compare/1.0.0.1...rel_1.x)
+### Fixed
 - fix wrong method scope
 
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-
-## 1.0.0.1 (2021-12-13)
-
+## [1.0.0.1](https://git.d3data.de/D3Public/sortedMenus/compare/1.0.0.0...1.0.0.1) - 2021-12-13
+### Changed
 - improve documentation
 - add suggested package
 
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-
-## 1.0.0.0 (2021-12-11)
-
+## [1.0.0.0](https://git.d3data.de/D3Public/sortedMenus/releases/tag/1.0.0.0) - 2021-12-11
+### Added
 - initial implementation