Update app.py

app.py

@@ -97,7 +97,7 @@ def rag(input_text, file):
     query_engine = index.as_query_engine()
     return query_engine.query(
         input_text
-    ) + 
+    )
 
 iface = gr.Interface(fn=rag, inputs=[gr.Textbox(label="Pitanje:", lines=6), gr.File()], 
                      outputs=[gr.Textbox(label="Odgovor:", lines=6)],