Add changelog entry

Signed-off-by: Peter Nied <petern@amazon.com>

Author: peternied

CHANGELOG.md

@@ -120,6 +120,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Allow changing number of replicas of searchable snapshot index ([#11317](https://github.com/opensearch-project/OpenSearch/pull/11317))
 - Adding slf4j license header to LoggerMessageFormat.java ([#11069](https://github.com/opensearch-project/OpenSearch/pull/11069))
 - [BWC and API enforcement] Introduce checks for enforcing the API restrictions ([#11175](https://github.com/opensearch-project/OpenSearch/pull/11175))
+- Projected Views ([#11957](https://github.com/opensearch-project/OpenSearch/pull/11957))
 
 ### Dependencies
 - Bump Lucene from 9.7.0 to 9.8.0 ([10276](https://github.com/opensearch-project/OpenSearch/pull/10276))