added a changelog

Signed-off-by: Bibaswan Prasai <bibaswanprasai12@gmail.com>

Author: bibaswan7

CHANGELOG.md

@@ -56,6 +56,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Correct the generated path for downloading plugins by their names on Windows ([#4953](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/4953))
 - [BUG] Fix buildPointSeriesData unit test fails due to local timezone ([#4992](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/4992))
 - [BUG][Data Explorer][Discover] Fix total hits issue for no time based data ([#5087](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5087))
+- [BUG] Fix panel header from "Open search" to "OpenSearch"([#5152](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5152))
 - [BUG][Data Explorer][Discover] Add onQuerySubmit to top nav and allow force update to embeddable ([#5160](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5160))
 - [BUG][Discover] Fix misc navigation issues ([#5168](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5168))
 - [BUG][Discover] Fix mobile view ([#5168](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5168))