Update README.md

README.md

@@ -23,7 +23,7 @@ Volcano employs a single LMM to generate initial responses, feedback, and revisi
 # Model details
 
 **Model type:**
-Volcano-7b is a multimodal self-feedback guided revision model that was fine-tuned by mixing the visual instruction tuning dataset used in [LLaVA-v1.5](https://llava-vl.github.io/) with multimodal feedback and revision data collected through gpt-3.5-turbo, applied to the [vicuna-7b-v1.5](https://huggingface.co/lmsys/vicuna-7b-v1.5) model.
+Volcano-7b is a multimodal self-feedback guided revision model that was fine-tuned by mixing the visual instruction tuning dataset used in [LLaVA-v1.5](https://llava-vl.github.io/) with multimodal feedback and revision data collected through [gpt-3.5-turbo](https://platform.openai.com/docs/models/gpt-3-5), applied to the [vicuna-7b-v1.5](https://huggingface.co/lmsys/vicuna-7b-v1.5) model.
 
 **Model date:**
 Volcano-7b was trained in October 2023.