updating release note (#1596)

Author: dhrubo-os

release-notes/opensearch-ml-common.release-notes-2.11.1.0.md

@@ -1,13 +1,15 @@
 ## Version 2.11.1.0 Release Notes
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 Compatible with OpenSearch 2.11.1
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 ### Bug Fixes
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- * fix multiple docs support ([#1516](https://github.com/opensearch-project/ml-commons/pull/1516))
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+* fix multiple docs support ([#1516](https://github.com/opensearch-project/ml-commons/pull/1516))
+* support step size for embedding model which outputs less embeddings ([#1586](https://github.com/opensearch-project/ml-commons/pull/1586))
+* validate step size ([#1587](https://github.com/opensearch-project/ml-commons/pull/1587))
 
 ### CVE Fixes
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 * Bump json version to address CVE-2023-5072 ([#1551](https://github.com/opensearch-project/ml-commons/pull/1551))