improve changelog wording

CHANGELOG.md

@@ -4,7 +4,7 @@
 
 ## [0.1.1] - 20 January 2020
 - **Breaking**: `LocallyPersistentRepository` is now a mixin.
-- New: `CornerstonePersistentRepositoryMixin` (was `HivePersistentRepositoryMixin` for a moment in 0.1.0). I find it really repetitive to make this every time, so I put it in the main library.
+- New: `CornerstonePersistentRepositoryMixin` (was `HivePersistentRepositoryMixin` for a moment in 0.1.0) to easily add persistence functionality to your repos. Made possible using `Hive`.
 - New: `Hive` as a dependency for `CornerstonePersistentRepositoryMixin`.
 - New: `ConvertExceptionToFailure`. A mockable & reusable exception -> failure converter. This way if you have a lot of functions in a repo, doesn't need to keep testing each function for its error handling.
 - New: `CornerstoneSnapshot`. You can use it as base class for your repositories. It have built-in convenience like timestamp.