📝 Fixed release date for 1.6.0

Author: morkro

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to this project will be documented here.
 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).
 
-## [1.6.0] - 2019-01-xx
+## [1.6.0] - 2019-01-09
 
 ### Added
 - Gallery module for plants.