update changelog with latest changes

Author: Release bot

CHANGELOG.md

@@ -12,6 +12,7 @@
 
 ## Documentation
 
+* **event_handlers:** Fix REST API - HTTP Methods documentation ([#1936](https://github.com/awslabs/aws-lambda-powertools-python/issues/1936))
 * **home:** update powertools definition
 * **we-made-this:** add Feature Flags post ([#1939](https://github.com/awslabs/aws-lambda-powertools-python/issues/1939))