chore: fix links in changelog

CHANGELOG.md

@@ -5,9 +5,9 @@ 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).
 
-## [Unreleased]
+## [Unreleased](https://github.com/kanbn/kan/compare/v0.2.2...HEAD)
 
-## [0.2.2] - 2025-06-28
+## [0.2.2](https://github.com/kanbn/kan/compare/v0.2.1...v0.2.2) - 2025-06-28
 
 ### Added
 
@@ -18,7 +18,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Improved email configuration with optional SMTP authentication
 
-## [0.2.1] - 2025-06-19
+## [0.2.1](https://github.com/kanbn/kan/compare/v0.2.0...v0.2.1) - 2025-06-19
 
 ### Added
 
@@ -42,7 +42,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Build context and static file copying in Docker
 - Comment rendering inside contenteditable elements
 
-## [0.2.0] - 2025-06-10
+## [0.2.0](https://github.com/kanbn/kan/compare/v0.1.0...v0.2.0) - 2025-06-10
 
 ### Added
 
@@ -66,7 +66,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Renamed markdown prop to content in Editor component
 - Router navigation for disabled signup redirects
 
-## [0.1.0] - 2025-06-02
+## [0.1.0](https://github.com/kanbn/kan/releases/tag/v0.1.0) - 2025-06-02
 
 ### Added
 
@@ -83,11 +83,3 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 - Updated license link in footer
-
-## Links
-
-- [Unreleased]: https://github.com/kanbn/kan/compare/v0.2.2...HEAD
-- [0.2.2]: https://github.com/kanbn/kan/compare/v0.2.1...v0.2.2
-- [0.2.1]: https://github.com/kanbn/kan/compare/v0.2.0...v0.2.1
-- [0.2.0]: https://github.com/kanbn/kan/compare/v0.1.0...v0.2.0
-- [0.1.0]: https://github.com/kanbn/kan/releases/tag/v0.1.0