Update CHANGELOG

Author: glennmatthews

CHANGELOG.md

@@ -7,6 +7,7 @@
 - #115 - Add default `status` and `sequence` values for iCal notifications missing these fields
 - #124 - Handle encoded non-ASCII characters in email subjects.
 - #126 - Ignore a class of non-maintenance-notification emails from Telia.
+- #127 - Improve handling of Equinix and Lumen notifications.
 
 ## v2.0.7 - 2021-12-01