feat: add vector search optimization for better performance

Author: jackye1995

README.md

@@ -266,3 +266,5 @@ Lance is currently used in production by:
 * [Lance v2: A columnar container format for modern data](https://blog.lancedb.com/lance-v2/), Apr 2024.
 * [Lance Deep Dive](https://drive.google.com/file/d/1Orh9rK0Mpj9zN_gnQF1eJJFpAc6lStGm/view?usp=drive_link). July 2023.
 * [Lance: A New Columnar Data Format](https://docs.google.com/presentation/d/1a4nAiQAkPDBtOfXFpPg7lbeDAxcNDVKgoUkw3cUs2rE/edit#slide=id.p), [Scipy 2022, Austin, TX](https://www.scipy2022.scipy.org/posters). July, 2022.
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+<!-- feat: add vector search optimization -->