message: chore: add changelog entries for Subjects::Widget in handbook
diff: @@ -41,6 +41,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
  - Packages
  - `ember-animated`
  - `ember-element-helper` (`fix-engines` branch)
  +- Handbook
  + - `Subjects::Widget` component to gallery
  ### Changed
  - Models
  