Update CHANGELOG.md

Signed-off-by: Thanawan Atchariyachanvanit <latchari@amazon.com>

CHANGELOG.md

@@ -13,6 +13,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 ### Fixed
 - Fix ModelUploader bug & Update model tracing demo notebook by @thanawan-atc in ([#185](https://github.com/opensearch-project/opensearch-py-ml/pull/185))
 - Fix make_model_config_json function by @thanawan-atc in ([#188](https://github.com/opensearch-project/opensearch-py-ml/pull/188))
+- Make make_model_config_json function more concise by @thanawan-atc in ([#191](https://github.com/opensearch-project/opensearch-py-ml/pull/191))
 
 ## [1.0.0]    
 
@@ -82,4 +83,4 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 
 
 [1.0.0]: https://github.com/opensearch-project/opensearch-py-ml/compare/1.0.0b1...1.0.0
-[1.0.0b1]: https://github.com/opensearch-project/opensearch-py-ml/commits/1.0.0b1
+[1.0.0b1]: https://github.com/opensearch-project/opensearch-py-ml/commits/1.0.0b1