update changelog wording

Author: joshuadavidthomas

CHANGELOG.md

@@ -20,7 +20,7 @@ and this project attempts to adhere to [Semantic Versioning](https://semver.org/
 
 ### Changed
 
-- Changed `installation_repositories` event handler to automatically create missing `Installation` models using new `get_or_create_from_event` method, eliminating the need for manual import when connecting to pre-existing GitHub App installations.
+- Changed `installation_repositories` internal event handlers to automatically create missing `Installation` models using new `(a)get_or_create_from_event` method, eliminating the need for manual import when connecting to pre-existing GitHub App installations.
 
 ## [0.8.0]