Update CHANGELOG for release v0.4.0

CHANGELOG.md

@@ -3,7 +3,7 @@ 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]
+## [v0.4.0] - 2020-10-20
 ### Added
 - Configurable revisions for git repositories ([#116])
 
@@ -86,7 +86,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Changelog
 - RBAC management for clusters
 
-[Unreleased]: https://github.com/projectsyn/lieutenant-operator/compare/v0.3.0...HEAD
+[Unreleased]: https://github.com/projectsyn/lieutenant-operator/compare/v0.4.0...HEAD
 [v0.0.3]: https://github.com/projectsyn/lieutenant-operator/releases/tag/v0.0.3
 [v0.0.4]: https://github.com/projectsyn/lieutenant-operator/releases/tag/v0.0.4
 [v0.0.5]: https://github.com/projectsyn/lieutenant-operator/releases/tag/v0.0.5
@@ -99,6 +99,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 [v0.2.1]: https://github.com/projectsyn/lieutenant-operator/releases/tag/v0.2.1
 [v0.2.2]: https://github.com/projectsyn/lieutenant-operator/releases/tag/v0.2.2
 [v0.3.0]:  https://github.com/projectsyn/lieutenant-operator/releases/tag/v0.3.0
+[v0.4.0]:  https://github.com/projectsyn/lieutenant-operator/releases/tag/v0.4.0
 
 [#62]: https://github.com/projectsyn/lieutenant-operator/pull/62
 [#71]: https://github.com/projectsyn/lieutenant-operator/pull/71