Update README.md

README.md

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 - **Developed by:** [Joseph (Chen-Wei) Li](https://www.linkedin.com/in/joseph-li-3a453b231/), researcher assistant from National Taiwan University Hospital.
 - **Model type:**  A 7B parameter GPT-like model fine-tuned on a combination of private and synthetic dialogue datasets..
 - **Language(s) (NLP):** Traditional Chinese (zh-tw)
-- **Finetuned from model :** [yentinglin/Taiwan-LLM-7B-v2.1-chat](https://huggingface.co/yentinglin/Taiwan-LLM-7B-v2.1-chat)
+- **Finetuned from model :** [yentinglin/Taiwan-LLM-7B-v2.1-chat](https://huggingface.co/yentinglin/Taiwan-LLM-7B-v2.1-chat)
+
+### Usage of the model
+The user can take on the role of a doctor, and the model can engage in conversation with you as if it were a patient.