Update changelog

CHANGELOG.md

@@ -9,6 +9,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- Added support for notes in the activities import
+
+## Unreleased
+
+### Added
+
 - Added the version to the admin control panel
 - Added pagination parameters (`skip`, `take`) to the endpoint `GET api/v1/order`