Update config.json

config.json

@@ -1 +1 @@
-{'arch': 'medomni', 'precision': 'fp16', 'freeze_vit': True, 'llama_model': 'meta-llama/Llama-2-7b-chat-hf', 'prompt': '', 'model_type': 'medomni', 'freeze_qformer': True, 'max_txt_len': 256, 'end_sym': '###', 'low_resource': False}
+{"arch": "medomni", "precision": "fp16", "freeze_vit": True, "llama_model": "meta-llama/Llama-2-7b-chat-hf", "prompt": "", "model_type": "medomni", "freeze_qformer": True, "max_txt_len": 256, "end_sym": "###", "low_resource": False}