update changelog [ci skip]

CHANGELOG.md

@@ -4,6 +4,12 @@ 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).
 
+## [1.2.1] - 2019-07-17
+### Added
+- Pull if-not-exists when converting legacy yaml files, by [@bradrydzewski](https://github.com/bradrydzewski).
+- Improve workspace support when converting legacy yaml files, by [@bradrydzewski](https://github.com/bradrydzewski).
+- Improve registry secret support when converting legacy yaml files, by [@bradrydzewski](https://github.com/bradrydzewski).
+
 ## [1.2.0] - 2019-07-16
 ### Added
 - Added Action field to trigger and when clause, by [@bradrydzewski](https://github.com/bradrydzewski).