Update QnA.py

QnA.py

@@ -55,7 +55,7 @@ def summarize(documents,llm):
     return results['output_text']
 
 
-def get_hugging_face_model(model_id='tiiuae/Falcon3-7B-Instruct',temperature=0.01,max_tokens=2048,api_key=None):
+def get_hugging_face_model(model_id='mistralai/Mixtral-8x7B-Instruct-v0.1',temperature=0.01,max_tokens=2048,api_key=None):
     llm = HuggingFaceHub(
         huggingfacehub_api_token =api_key ,
         repo_id=model_id,