Update CHANGELOG.md

Author: rocxteady

CHANGELOG.md

@@ -15,6 +15,7 @@ __New features__
 [Full Changelog](https://github.com/parse-community/Parse-Swift/compare/4.5.0...4.6.0)
 
 __New features__
+- Add ParseSpotify authentication ([#375](https://github.com/parse-community/Parse-Swift/pull/375)), thanks to [Ulaş Sancak](https://github.com/rocxteady).
 - Add the ability to use Parse Hooks and Triggers ([#373](https://github.com/parse-community/Parse-Swift/pull/373)), thanks to [Corey Baker](https://github.com/cbaker6).
 - Add ParseInstagram authentication ([#372](https://github.com/parse-community/Parse-Swift/pull/372)), thanks to [Ulaş Sancak](https://github.com/rocxteady).
 - Add the ability to send APN and FCM push notifications. Also adds the ability to query _PushStatus ([#371](https://github.com/parse-community/Parse-Swift/pull/371)), thanks to [Corey Baker](https://github.com/cbaker6).