Update changelog for 0.3.0

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).
 
-## [Unreleased]
+## [0.3.0] - 2020-06-29
 ### Changed
 - Replaced params classes with module hieradata.
 - Replaced function based parameter validation with Puppet Types.
@@ -238,3 +238,18 @@ A few pull requests
 ## [0.0.1] - 2013-06-02
 
 Initial release
+
+[unreleased]: https://github.com/ssm/ssm-munin/compare/0.3.0...main
+[0.3.0]: https://github.com/ssm/ssm-munin/compare/0.2.0...0.3.0
+[0.2.0]: https://github.com/ssm/ssm-munin/compare/0.1.0...0.2.0
+[0.1.0]: https://github.com/ssm/ssm-munin/compare/0.0.10...0.1.0
+[0.0.10]: https://github.com/ssm/ssm-munin/compare/0.0.9...0.0.10
+[0.0.9]: https://github.com/ssm/ssm-munin/compare/0.0.8...0.0.9
+[0.0.8]: https://github.com/ssm/ssm-munin/compare/0.0.7...0.0.8
+[0.0.7]: https://github.com/ssm/ssm-munin/compare/0.0.6...0.0.7
+[0.0.6]: https://github.com/ssm/ssm-munin/compare/0.0.5...0.0.6
+[0.0.5]: https://github.com/ssm/ssm-munin/compare/0.0.4...0.0.5
+[0.0.4]: https://github.com/ssm/ssm-munin/compare/0.0.3...0.0.4
+[0.0.3]: https://github.com/ssm/ssm-munin/compare/0.0.2...0.0.3
+[0.0.2]: https://github.com/ssm/ssm-munin/compare/0.0.1...0.0.2
+[0.0.1]: https://github.com/ssm/ssm-munin/commits/0.0.1