add release notes for 3.0 (opensearch-project#1298)

Signed-off-by: will-hwang <[email protected]>
Signed-off-by: yeonghyeonKo <[email protected]>

Author: will-hwang

CHANGELOG.md

@@ -7,14 +7,12 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ### Features
 - Implement analyzer based neural sparse query ([#1088](https://github.com/opensearch-project/neural-search/pull/1088) [#1279](https://github.com/opensearch-project/neural-search/pull/1279))
-- [Semantic Field] Add semantic field mapper. ([#1225](https://github.com/opensearch-project/neural-search/pull/1225)).
 
 ### Enhancements
 - [Performance Improvement] Add custom bulk scorer for hybrid query (2-3x faster) ([#1289](https://github.com/opensearch-project/neural-search/pull/1289))
 - [Stats] Add stats for text chunking processor algorithms ([#1308](https://github.com/opensearch-project/neural-search/pull/1308))
 
 ### Bug Fixes
-- Add validations to prevent empty input_text_field and input_image_field in TextImageEmbeddingProcessor ([#1257](https://github.com/opensearch-project/neural-search/pull/1257))
 - Fix score value as null for single shard when sorting is not done on score field ([#1277](https://github.com/opensearch-project/neural-search/pull/1277))
 
 ### Infrastructure