adding 2.5 release notes (#782)

Signed-off-by: Amit Galitzky <amgalitz@amazon.com>
(cherry picked from commit 9cebc5b)

Co-authored-by: Amit Galitzky <amgalitz@amazon.com>

release-notes/opensearch-anomaly-detection.release-notes-2.5.0.0.md

@@ -0,0 +1,27 @@
+## Version 2.5.0.0 Release Notes
+
+Compatible with OpenSearch 2.5.0
+
+
+### Enhancements
+
+* Speed up cold start ([#753](https://github.com/opensearch-project/anomaly-detection/pull/753))
+
+### Bug Fixes
+
+* Fix _source bug ([#749](https://github.com/opensearch-project/anomaly-detection/pull/749))
+* Fix the discrepancy between Profile API and real time tasks API ([#770](https://github.com/opensearch-project/anomaly-detection/pull/770))
+
+### Infrastructure
+
+* Model Profile Test ([#748](https://github.com/opensearch-project/anomaly-detection/pull/748))
+* Add option to run BWC tests in distribution level ([#766](https://github.com/opensearch-project/anomaly-detection/pull/766))
+
+### Documentation
+
+* Fix: typo in ohltyler. ([#760](https://github.com/opensearch-project/anomaly-detection/pull/760))
+* Updated MAINTAINERS.md format. ([#771](https://github.com/opensearch-project/anomaly-detection/pull/771))
+
+### Maintenance
+
+* Increment version to 2.5.0-SNAPSHOT ([#711](https://github.com/opensearch-project/anomaly-detection/pull/711))