Update model portrait

README.md

@@ -50,7 +50,7 @@ prompt_template: '<|im_start|>system
 - Model creator: [NeuralNovel](https://huggingface.co/NeuralNovel)
 - Original model: [Tiger-7B-v0.1](https://huggingface.co/NeuralNovel/Tiger-7B-v0.1)
 
-![image/png](https://cdn-uploads.huggingface.co/production/uploads/645cfe4603fc86c46b3e46d1/Z58bB5sYr3pyE2Ilbk7Dk.png)
+![tiger](https://cdn-uploads.huggingface.co/production/uploads/645cfe4603fc86c46b3e46d1/a9GqRTNoGZQsRVU-C6XRO.jpeg)
 
 ## Model Details