changelog updated

Author: Webklex

CHANGELOG.md

@@ -12,6 +12,7 @@ Updates should follow the [Keep a CHANGELOG](http://keepachangelog.com/) princip
 ### Added
 - Make boundary regex configurable #169 #150 #126 #121 #111 #152 #108 (thanks @EthraZa)
 - IMAP ID support added #174
+- Enable debug mode via config
 
 ### Affected Classes
 - [Header::class](src/Header.php)