Update README.md

README.md

@@ -9,7 +9,7 @@ This repo contains the models for "eCeLLM: Generalizing Large Language Models fo
 
 ## eCeLLM Models
 Leveraging ECInstruct, we develop eCeLLM by instruction tuning general-purpose LLMs (base models).
-The eCeLLM-S model is instruction-tuned from the large base models [Phi-2](https://www.microsoft.com/en-us/research/blog/phi-2-the-surprising-power-of-small-language-models/).
+The eCeLLM-S model is instruction-tuned from the large base models [Phi-2](https://huggingface.co/microsoft/phi-2).
 
 ## Citation
 ```bibtex