update changelog

Author: 902seanryan

CHANGELOG.md

@@ -4,8 +4,12 @@ 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/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [2.2.2] - 2021-05-05
-## Changes
+## [2.2.3] - unreleased
+## Changed
+- updated `singlePlay` response to not return an object containing the boolean, but just the boolean itself.
+
+## [2.2.2] - 2021-05-03
+## Changed
 - Updated comments and docs to be more accurate and up to date
 ## [2.2.1] - 2021-03-04
 ### Changed