Release 0.5.4

Author: aomarks

CHANGELOG.md

@@ -5,7 +5,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/) and this
 project adheres to [Semantic Versioning](http://semver.org/).
 
-## Unreleased
+<!-- ## Unreleased -->
+
+## [0.5.4] 2020-09-18
 
 - Fix bug where a unique browser would not be launched if the only difference
   between browser configurations was `binary`, `addArguments`,