Added 0.9.1 release note

Author: shyiko

CHANGELOG.md

@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [0.9.1] - 2018-08-09
+
+### Fixed
+- `Failed to base64-decode _` on `kubesec edit -if` ([#15](https://github.com/shyiko/kubesec/issues/15)).
+
 ## [0.9.0] - 2018-06-25
 
 ### Added
@@ -178,6 +183,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## 0.1.0 - 2017-08-11
 
+[0.9.1]: https://github.com/shyiko/kubesec/compare/0.9.0...0.9.1
 [0.9.0]: https://github.com/shyiko/kubesec/compare/0.8.0...0.9.0
 [0.8.0]: https://github.com/shyiko/kubesec/compare/0.7.0...0.8.0
 [0.7.0]: https://github.com/shyiko/kubesec/compare/0.6.2...0.7.0