Update CHANGELOG to keepachangelog format

Author: razor-x

CHANGELOG.md

@@ -1,53 +1,108 @@
 # Changelog
 
-## 2.3.0
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/)
+and this project adheres to [Semantic Versioning](https://semver.org/).
+
+## [2.3.0] / 2018-09-23
+
+### Added
+
+- `geoclue-agent.service`.
+
+### Changed
 
-- Add `geoclue-agent.service`.
 - Start redshift-gtk after geoclue-agent.
 
-## 2.2.1
+## [2.2.1] / 2016-06-08
+
+### Changed
+
+- Set longer restart interval for redshift-gtk and app services.
+
+### Fixed
+
+- Typo in `xbindkeys.service`.
+
+## [2.2.0] / 2016-06-08
+
+### Changed
 
 - Set longer restart interval for redshift-gtk and app services.
-- Fix typo in `xbindkeys.service`.
 
-## 2.2.0
+### Fixed
+
+- Typo in `xbindkeys.service`.
+
+## [2.2.0] / 2016-06-08
+
+### Changed
 
 - The following services now restart on failure:
   `app@`, `hexchat`, `insync`, `rbenv@`, `transmission-gtk`, and `xbindkeys`.
 
-## 2.1.0
+## [2.1.0] / 2016-06-07
+
+### Changed
 
 - Use `--no-daemon` mode for insync.
 
-## 2.0.0
+## [2.0.0] / 2015-09-29
+
+### Removed
+
+- Dbus units: D-Bus 266 now launches user buses.
 
-- Remove dbus units: D-Bus 266 now launches user buses.
+## [1.4.1] / 2015-09-09
 
-## 1.4.1
+### Changed
 
-- Fix issues with ordering cycles.
 - Set restart on-failure for xscreensaver.
 
-## 1.4.0
+### Fixed
 
-- Add xscreensaver.service.
+- Issues with ordering cycles.
 
-## 1.3.0
+## [1.4.0] / 2015-08-22
+
+- `xscreensaver.service`.
+
+## [1.3.0] / 2015-06-11
+
+### Changed
 
 - Use system tmuxinator.
 
-## 1.2.0
+## [1.2.0] / 2015-05-23
 
 - Add transmission-gtk.service.
 
-## 1.1.1
+## [1.1.1] / 2015-05-23
+
+### Fixed
 
 - Ensure some units start after xresources.
 
-## 1.1.0
+## [1.1.0] / 2015-05-16
+
+### Added
 
 - Add ssh-agent.service.
 
-## 1.0.0
+## 1.0.0 / 2015-05-10
 
 - Initial release.
+
+[Unreleased]: https://github.com/rxrc/systemd-user-units/compare/v2.3.0...HEAD
+[2.3.0]: https://github.com/rxrc/systemd-user-units/compare/v2.2.1...v2.3.0
+[2.2.1]: https://github.com/rxrc/systemd-user-units/compare/v2.2.0...v2.2.1
+[2.2.0]: https://github.com/rxrc/systemd-user-units/compare/v2.1.0...v2.2.0
+[2.1.0]: https://github.com/rxrc/systemd-user-units/compare/v2.0.0...v2.1.0
+[2.0.0]: https://github.com/rxrc/systemd-user-units/compare/v1.4.1...v2.0.0
+[1.4.1]: https://github.com/rxrc/systemd-user-units/compare/v1.4.0...v1.4.1
+[1.4.0]: https://github.com/rxrc/systemd-user-units/compare/v1.3.0...v1.4.0
+[1.3.0]: https://github.com/rxrc/systemd-user-units/compare/v1.2.0...v1.3.0
+[1.2.0]: https://github.com/rxrc/systemd-user-units/compare/v1.1.1...v1.2.0
+[1.1.1]: https://github.com/rxrc/systemd-user-units/compare/v1.1.0...v1.1.1
+[1.1.0]: https://github.com/rxrc/systemd-user-units/compare/v1.0.0...v1.1.0