Add 1.3.15 to version history (opensearch-project#6582)

* Add 1.3.15 to version history

Signed-off-by: Fanit Kolchina <[email protected]>

* Typo fix

Signed-off-by: Fanit Kolchina <[email protected]>

---------

Signed-off-by: Fanit Kolchina <[email protected]>

Author: kolchfa-aws

_about/version-history.md

@@ -27,6 +27,7 @@ OpenSearch version | Release highlights | Release date
 [2.0.1](https://github.com/opensearch-project/opensearch-build/blob/main/release-notes/opensearch-release-notes-2.0.1.md) | Includes bug fixes and maintenance updates for Alerting and Anomaly Detection. | 16 June 2022
 [2.0.0](https://github.com/opensearch-project/opensearch-build/blob/main/release-notes/opensearch-release-notes-2.0.0.md) | Includes document-level monitors for alerting, OpenSearch Notifications plugins, and Geo Map Tiles in OpenSearch Dashboards. Also adds support for Lucene 9 and bug fixes for all OpenSearch plugins. For a full list of release highlights, see the Release Notes. | 26 May 2022
 [2.0.0-rc1](https://github.com/opensearch-project/opensearch-build/blob/main/release-notes/opensearch-release-notes-2.0.0-rc1.md) | The Release Candidate for 2.0.0. This version allows you to preview the upcoming 2.0.0 release before the GA release. The preview release adds document-level alerting, support for Lucene 9, and the ability to use term lookup queries in document level security. | 03 May 2022
+[1.3.15](https://github.com/opensearch-project/opensearch-build/blob/main/release-notes/opensearch-release-notes-1.3.15.md) | Includes bug fixes and maintenance updates for cross-cluster replication, SQL, OpenSearch Dashboards reporting, and alerting.  | 05 March 2024
 [1.3.14](https://github.com/opensearch-project/opensearch-build/blob/main/release-notes/opensearch-release-notes-1.3.14.md) | Includes bug fixes and maintenance updates for OpenSearch security and OpenSearch Dashboards security.  | 12 December 2023
 [1.3.13](https://github.com/opensearch-project/opensearch-build/blob/main/release-notes/opensearch-release-notes-1.3.13.md) | Includes bug fixes for Anomaly Detection, adds maintenance updates and infrastructure enhancements.  | 21 September 2023
 [1.3.12](https://github.com/opensearch-project/opensearch-build/blob/main/release-notes/opensearch-release-notes-1.3.12.md) | Adds maintenance updates for OpenSearch security and OpenSearch Dashboards observability. Includes bug fixes for observability, OpenSearch Dashboards visualizations, and OpenSearch security. | 10 August 2023