Update model links in README.md

Author: anxiangsir

README.md

@@ -107,7 +107,7 @@ Meticulously curated **pre-training and SFT data** with rigorous filtering and q
 
 | Model                    | HF Link                                                                                      | Training Log |
 |--------------------------|--------------------------------------------------------------------------------------------------------|-------------|
-| LLaVA-OV-1.5-4B-Base | Uploading…                | Uploading… |
+| LLaVA-OV-1.5-4B-Base | [🤗 HF / 4B-Base](https://huggingface.co/lmms-lab/LLaVA-OneVision-1.5-4B-Base)                | Uploading… |
 | LLaVA-OV-1.5-4B-Instruct | [🤗 HF / 4B-Instruct](https://huggingface.co/lmms-lab/LLaVA-OneVision-1.5-4B-Instruct)                | [📈 Tensorboard](https://huggingface.co/lmms-lab/LLaVA-OneVision-1.5-4B-Instruct/tensorboard) |
 | LLaVA-OV-1.5-8B-Base | Uploading…                | Uploading… |
 | LLaVA-OV-1.5-8B-Instruct | [🤗 HF / 8B-Instruct](https://huggingface.co/lmms-lab/LLaVA-OneVision-1.5-8B-Instruct)                | [📈 Tensorboard](https://huggingface.co/lmms-lab/LLaVA-OneVision-1.5-8B-Instruct/tensorboard) |