Update README.md

Author: Muennighoff

README.md

@@ -11,7 +11,7 @@
 
 **Updates:**
 
-* 2025-02: We released [s1.1](https://huggingface.co/simplescaling/s1.1-32B) a better model than s1 by reusing the same s1K questions but with reasoning traces generated by r1 instead of Gemini: [s1K-1.1](https://huggingface.co/datasets/simplescaling/s1K-1.1). Check [this tweet](TODO) for details
+* 2025-02: We released [s1.1](https://huggingface.co/simplescaling/s1.1-32B) a better model than s1 by reusing the same s1K questions but with reasoning traces generated by r1 instead of Gemini: [s1K-1.1](https://huggingface.co/datasets/simplescaling/s1K-1.1). Check [this tweet](https://x.com/Muennighoff/status/1889310803746246694) for details
 * 2025-01: We released [our paper](https://arxiv.org/abs/2501.19393) announced via [this tweet](https://x.com/Muennighoff/status/1886405528777073134).
 
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