fix: update base model link

README.md

@@ -15,7 +15,7 @@ datasets:
 
 ## Model Description
 
-StableVicuna-13B is a [Vicuna-13B v0](https://vicuna.lmsys.org/) model fine-tuned using reinforcement learning from human feedback (RLHF) via Proximal Policy Optimization (PPO) on various conversational and instructional datasets.
+StableVicuna-13B is a [Vicuna-13B v0](https://huggingface.co/lmsys/vicuna-13b-delta-v0) model fine-tuned using reinforcement learning from human feedback (RLHF) via Proximal Policy Optimization (PPO) on various conversational and instructional datasets.
 
 ### Apply Delta Weights