Fix finetuned from

README.md

@@ -26,7 +26,7 @@ For more details, read the paper: [Camels in a Changing Climate: Enhancing LM Ad
 - **Model type:** A model belonging to a suite of instruction and RLHF tuned chat models on a mix of publicly available, synthetic and human-created datasets.
 - **Language(s) (NLP):** Primarily English
 - **License:** [AI2 ImpACT](https://allenai.org/impact-license) Low-risk license.
-- **Finetuned from model:** [meta-llama/Llama-2-13b-hf](https://huggingface.co/meta-llama/Llama-2-13b-hf)
+- **Finetuned from model:** [meta-llama/Llama-2-7b-hf](https://huggingface.co/meta-llama/Llama-2-7b-hf)
 
 ### Model Sources