Add missing plugins (#10183)

* Add missing plugins

Signed-off-by: Eric Pugh <epugh@opensourceconnections.com>

* UBI shipped in 3.0

Signed-off-by: Eric Pugh <epugh@opensourceconnections.com>

---------

Signed-off-by: Eric Pugh <epugh@opensourceconnections.com>

Author: epugh

_install-and-configure/plugins.md

@@ -302,6 +302,8 @@ The following plugins are bundled with all OpenSearch distributions except for t
 | Remote Metadata SDK | [opensearch-remote-metadata-sdk](https://github.com/opensearch-project/opensearch-remote-metadata-sdk) | 2.19.0 |
 | Query Insights | [query-insights](https://github.com/opensearch-project/query-insights) | 2.16.0 |
 | System Templates | [opensearch-system-templates](https://github.com/opensearch-project/opensearch-system-templates) | 2.17.0 |
+| User Behavior Insights | [ubi](https://github.com/opensearch-project/user-behavior-insights) | 3.0.0 |
+| Search Relevance | [search-relevance](https://github.com/opensearch-project/search-relevance) | 3.1.0 |
 
 _<sup>1</sup>Dashboard Notebooks was merged in to the Observability plugin with the release of OpenSearch 1.2.0._<br>
 _<sup>2</sup>Performance Analyzer is not available on Windows._