update changelog

Author: jonhealy1

CHANGELOG.md

@@ -10,6 +10,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Changed
 
 - 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 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
 
 ## [v0.2.0]