Fixed typo in 2.19 release notes. (#785) (#786)

* Added 2.19 release notes.



* Added 2.19 release notes.



* Fixed typo in 2.19 release notes.



---------


(cherry picked from commit 264a637)

Signed-off-by: AWSHurneyt <hurneyt@amazon.com>
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: opensearch-trigger-bot[bot]

release-notes/opensearch-common-utils.release-notes-2.19.0.0.md

@@ -16,4 +16,4 @@ Compatible with OpenSearch 2.19.0
 * Monitor model changed to add an optional fanoutEnabled field ([#758](https://github.com/opensearch-project/common-utils/pull/758))
 
 ### Documentation
-* Added 2.1.0.0 release notes. ([#780](https://github.com/opensearch-project/common-utils/pull/780))
+* Added 2.19.0.0 release notes. ([#780](https://github.com/opensearch-project/common-utils/pull/780))