Update app.py

app.py

@@ -12,7 +12,7 @@ HF_TOKEN = os.getenv('mentalhealth_llama_chat')
 login(HF_TOKEN)
 
 # Model name in Hugging Face docs
-model = 'vibhorag101/llama-2-7b-chat-hf-phr_mental_therapy'
+model = 'shefali2023/llama-2-7b-chat-doctor'
 
 
 #other model that we were using before