Prepare release 1.1.0

Author: web-flow

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.1.0] - 2020-02-17
+
 ### Added
 
 -   GitHub action to backport releases to dev branch
@@ -21,6 +23,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 -   Everything since the beginning!
 
-[Unreleased]: https://github.com/thomaseizinger/github-action-gitflow-release-workflow/compare/1.0.0...HEAD
+[Unreleased]: https://github.com/thomaseizinger/github-action-gitflow-release-workflow/compare/1.1.0...HEAD
+
+[1.1.0]: https://github.com/thomaseizinger/github-action-gitflow-release-workflow/compare/1.0.0...1.1.0
 
 [1.0.0]: https://github.com/thomaseizinger/github-action-gitflow-release-workflow/compare/794c3ba521cae6b168def8bdbfe1aa6a2c285257...1.0.0