Bumped CHANGELOG versions for release

Author: Adam Schlesinger

OneSignalExample/Assets/OneSignal/CHANGELOG.md

@@ -5,6 +5,7 @@ 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).
 
 ## [Unreleased]
+## [2.14.0]
 ### Added
 - A new Editor window under **Window > OneSignal** can be found which currently includes additional setup steps for installation.
 
@@ -13,4 +14,5 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
     - If you are updating from a previous version of the OneSignal Unity SDK please follow the Unity Asset Store instructions in
       the [README](https://github.com/OneSignal/OneSignal-Unity-SDK/README.md#unity-asset-store) to ensure a smooth transition.
 
-[Unreleased]: https://github.com/OneSignal/OneSignal-Unity-SDK/compare/v2.13.6...HEAD
+[Unreleased]: https://github.com/OneSignal/OneSignal-Unity-SDK/compare/2.13.6...HEAD
+[2.14.0]: https://github.com/OneSignal/OneSignal-Unity-SDK/compare/2.13.6...2.14.0