update changelog for release 54 [no ci]

CHANGELOG.md

@@ -4,6 +4,8 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
+
+## [0.0.54-alpha] - 2021-08-21
 ### Added
 - Add `Shuffle In Order` playback order for multi-collections.
   - This is useful for randomizing multiple collections/shows on a single channel, while each collection maintains proper ordering (custom or chronological)
@@ -544,7 +546,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Initial release to facilitate testing outside of Docker.
 
 
-[Unreleased]: https://github.com/jasongdove/ErsatzTV/compare/v0.0.53-alpha...HEAD
+[Unreleased]: https://github.com/jasongdove/ErsatzTV/compare/v0.0.54-alpha...HEAD
+[0.0.54-alpha]: https://github.com/jasongdove/ErsatzTV/compare/v0.0.53-alpha...v0.0.54-alpha
 [0.0.53-alpha]: https://github.com/jasongdove/ErsatzTV/compare/v0.0.52-alpha...v0.0.53-alpha
 [0.0.52-alpha]: https://github.com/jasongdove/ErsatzTV/compare/v0.0.51-alpha...v0.0.52-alpha
 [0.0.51-alpha]: https://github.com/jasongdove/ErsatzTV/compare/v0.0.50-alpha...v0.0.51-alpha