Adding release notes for 2.0.0-rc1 (#136)

Signed-off-by: Bharathwaj G <[email protected]>

release-notes/opensearch-asynchronous-search.release-notes-2.0.0.0-rc1.md

@@ -0,0 +1,21 @@
+## Version 2.0.0.0-rc1 Release Notes
+
+Compatible with OpenSearch 2.0.0-rc1
+
+### Maintenance
+* Upgrades to Opensearch 2.0, Gradle 7.3 and fixes ([#110](https://github.com/opensearch-project/asynchronous-search/pull/110))
+* Add support for -Dbuild.version_qualifier ([#115](https://github.com/opensearch-project/asynchronous-search/pull/115))
+* Remove usage of mapping types ([#119](https://github.com/opensearch-project/asynchronous-search/pull/119))
+* Remove hardcoding of versions in workflow ([#120](https://github.com/opensearch-project/asynchronous-search/pull/120))
+* Add qualifier default as alpha ([#123](https://github.com/opensearch-project/asynchronous-search/pull/123))
+* Change 2.0-alpha1 to 2.0-rc1 ([#131](https://github.com/opensearch-project/asynchronous-search/pull/131))
+
+### Infrastructure
+* Adding support for integration tests with remote cluster ([#111](https://github.com/opensearch-project/asynchronous-search/pull/111))
+* Remove support for JDK 8 ([#114](https://github.com/opensearch-project/asynchronous-search/pull/114))
+* Remove support for JDK 14 ([#125](https://github.com/opensearch-project/asynchronous-search/pull/125))
+* Updated issue templates from .github. ([#126](https://github.com/opensearch-project/asynchronous-search/pull/126))
+* Replace checked-in ZIP with a dynamic dependency ([#133](https://github.com/opensearch-project/asynchronous-search/pull/133))
+
+### Documentation
+* Change master nomenclature ([#116](https://github.com/opensearch-project/asynchronous-search/pull/116))