added queue function

app.py

@@ -103,8 +103,7 @@ Model restores punctuation and case i.e. of the following punctuations -- [! ? .
                          title = title,
                          description = description, 
                          examples=examples, 
-                         queue=True,
-                         allow_flagging="never")
+                         allow_flagging="never").queue(concurrency_count=2)
 
     interface.launch()