Add 2.18 release notes (#902)

Signed-off-by: Tyler Ohlsen <ohltyler@amazon.com>
(cherry picked from commit 482849d)

Author: ohltyler

release-notes/opensearch-anomaly-detection-dashboards.release-notes-2.18.0.0.md

@@ -0,0 +1,18 @@
+## Version 2.18.0.0 Release Notes
+
+Compatible with OpenSearch Dashboards 2.18.0
+
+### Enhancements
+* Report metrics for suggest anomaly detector ([#876](https://github.com/opensearch-project/anomaly-detection-dashboards-plugin/pull/876))
+* [navigation]feat: update category to flatten menus in analytics(all) use case ([#883](https://github.com/opensearch-project/anomaly-detection-dashboards-plugin/pull/883))
+* Fallback to cluster health on remote info failure ([#886](https://github.com/opensearch-project/anomaly-detection-dashboards-plugin/pull/886))
+* Sync code from 2.x to mds-2.17 ([#900](https://github.com/opensearch-project/anomaly-detection-dashboards-plugin/pull/900))
+
+
+### Bug Fixes
+* Fix custom result index session not rendering issue ([#887](https://github.com/opensearch-project/anomaly-detection-dashboards-plugin/pull/887))
+* Fix issues in running historical analysis and custom result index section ([#889](https://github.com/opensearch-project/anomaly-detection-dashboards-plugin/pull/889))
+* Fix preview not considering rules and imputation options ([#898](https://github.com/opensearch-project/anomaly-detection-dashboards-plugin/pull/898))
+
+### Maintenance
+* [AUTO] Increment version to 2.18.0.0 ([#877](https://github.com/opensearch-project/anomaly-detection-dashboards-plugin/pull/877))