message: added line to changelog
diff: @@ -5,7 +5,8 @@ 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).
  ## [NEXT]
  -
  +### Fixed
  + - Course progress mechanism
  ## [0.6.0] - 2018-03-31 - Introduces MediaManager and some minor changes
  ### Added
  