message: CHANGELOG: Clean up entries without GitHub link
diff: @@ -35,10 +35,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
  ### Changed
  - Minor fixes and adaptations and merge-failure fixes. [#785](https://github.com/geli-lms/geli/issues/785)
  -- Reworked the existing translation.
  -- Added vars to HTML-files.
  -- Added translations to resource files.
  -- Include translation for components.
  +- Reworked existing translations. [#753](https://github.com/geli-lms/geli/issues/753)
  - Migrate `MatSnackBar` to `SnackBarService`. [#724](https://github.com/geli-lms/geli/pull/724) [#730](https://github.com/geli-lms/geli/pull/730)
  - Reload user list after deleting an account. [#724](https://github.com/geli-lms/geli/pull/724)
  - Validate form before submit when creating a new course. [#724](https://github.com/geli-lms/geli/pull/724)
  