Update app.py

app.py

@@ -55,7 +55,7 @@ def create_qa_system():
             llm=llm,
             chain_type="stuff",
             retriever=db.as_retriever(search_kwargs={"k": 2}))
-        )
+        
     except Exception as e:
         raise gr.Error(f"Initialization failed: {str(e)}")