added 2.1 release notes (#284)

Signed-off-by: Amit Galitzky <[email protected]>
(cherry picked from commit 3b80bda)

release-notes/opensearch-anomaly-detection-dashboards.release-notes-2.1.0.0.md

@@ -0,0 +1,13 @@
+## Version 2.1.0.0 Release Notes
+
+Compatible with OpenSearch Dashboards 2.1.0
+
+### Bug Fixes
+
+* Fix missing data call out if window delay is large ([#278](https://github.com/opensearch-project/anomaly-detection-dashboards-plugin/pull/278))
+
+### Infrastructure
+
+* added UT for validation API related components ([#252](https://github.com/opensearch-project/anomaly-detection-dashboards-plugin/pull/252))
+* Run UT/IT on all branches ([#228](https://github.com/opensearch-project/anomaly-detection-dashboards-plugin/pull/228))
+* Bump to 2.1.0 compatibility ([#282](https://github.com/opensearch-project/anomaly-detection-dashboards-plugin/pull/282))