Update README.md

README.md

@@ -66,4 +66,4 @@ capacity (it will be improved in Preactor). Limits are:
 We are working on complete Reactive Neural Networks development framework - [RxNN github](https://github.com/RxAI-dev/RxNN)
 
 ## Additional Research
-- **Sparse Query Attention** - the most cost-effective GQA variant, reducing training time/cost by ~3-10% with similar performance. Research in progress
+- **Sparse Query Attention** - the most cost-effective GQA variant, even 2-3x faster for long sequences! Research in progress - [draft](https://github.com/RxAI-dev/RxNN/blob/main/docs/research/sparse_query_attention.md)