update changelog again

Author: jonhealy1

CHANGELOG.md

@@ -7,13 +7,16 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
-### Changed
+### Added
 
-- Updated core stac-fastapi libraries to 2.4.3 from 2.3.0 https://github.com/stac-utils/stac-fastapi-elasticsearch/pull/127
-- Added bbox and datetime parameters to item_collection https://github.com/stac-utils/stac-fastapi-elasticsearch/pull/127
+- Added bbox and datetime parameters and functionality to item_collection https://github.com/stac-utils/stac-fastapi-elasticsearch/pull/127
 - Added collection_id parameter to create_item function https://github.com/stac-utils/stac-fastapi-elasticsearch/pull/127
 - Added item_id and collection_id to update_item https://github.com/stac-utils/stac-fastapi-elasticsearch/pull/127
 
+### Changed
+
+- Updated core stac-fastapi libraries to 2.4.3 from 2.3.0 https://github.com/stac-utils/stac-fastapi-elasticsearch/pull/127
+
 ## [v0.2.0]
 
 ### Deprecated