add 2.3 release notes

Signed-off-by: penghuo <penghuo@gmail.com>

release-notes/opensearch-sql.release-notes-2.3.0.0.md

@@ -0,0 +1,24 @@
+### Version 2.3.0.0 Release Notes
+
+Compatible with OpenSearch and OpenSearch Dashboards Version 2.3.0
+
+### Features
+* Add maketime and makedate datetime functions ([#755](https://github.com/opensearch-project/sql/pull/755))
+
+### Enhancements
+* Refactor implementation of relevance queries ([#746](https://github.com/opensearch-project/sql/pull/746))
+* Extend query size limit using scroll ([#716](https://github.com/opensearch-project/sql/pull/716))
+* Add any case of arguments in relevancy based functions to be allowed ([#744](https://github.com/opensearch-project/sql/pull/744))
+
+### Bug Fixes
+* Fix unit test in PowerBI connector  ([#800](https://github.com/opensearch-project/sql/pull/800))
+
+### Infrastructure
+* Schedule request in worker thread ([#748](https://github.com/opensearch-project/sql/pull/748))
+* Deprecated ClusterService and Using NodeClient to fetch metadata ([#774](https://github.com/opensearch-project/sql/pull/774))
+* Change master node timeout to new API ([#793](https://github.com/opensearch-project/sql/pull/793))
+
+### Documentation
+* Adding documentation about double quote implementation ([#723](https://github.com/opensearch-project/sql/pull/723))
+* Add PPL security setting documentation ([#777](https://github.com/opensearch-project/sql/pull/777))
+* Update PPL docs link for workbench ([#758](https://github.com/opensearch-project/sql/pull/758))