Update README.md

Hi, wenhu, it's a nice job in NeurIPS'24 and we also noticed the the base model is missed in the model card.
We have updated this model card for better understanding the contribution of this paper. It is just a tiny update :)

README.md

@@ -7,6 +7,8 @@ datasets:
 metrics:
 - accuracy
 library_name: transformers
+base_model:
+- meta-llama/Meta-Llama-3-8B
 ---
 # 🦣 MAmmoTH2: Scaling Instructions from the Web