message: Update Changelog v21.4.0
diff: @@ -4,6 +4,10 @@ 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).
  +## [21.4.0] - 2021-04-11
  +### Added
  +- user's `myRegistrations` page
  +
  ## [21.3.0] - 2021-04-23
  ### Added
  - support for provider-specific (editable/read-only) registration metadata fields
  @@ -1719,7 +1723,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
  ### Added
  - Quick Files
  -[Unreleased]: https://github.com/CenterForOpenScience/ember-osf-web/compare/21.3.0...develop
  +[Unreleased]: https://github.com/CenterForOpenScience/ember-osf-web/compare/21.4.0...develop
  +[21.4.0]: https://github.com/CenterForOpenScience/ember-osf-web/releases/tag/21.4.0
  [21.3.0]: https://github.com/CenterForOpenScience/ember-osf-web/releases/tag/21.3.0
  [21.2.0]: https://github.com/CenterForOpenScience/ember-osf-web/releases/tag/21.2.0
  [21.1.1]: https://github.com/CenterForOpenScience/ember-osf-web/releases/tag/21.1.1
  