Update app.py

app.py

@@ -52,7 +52,7 @@ def add_text(history, text):
 
 def bot(history, api_kind):
     top_rerank = 15
-    top_k_rank = 5
+    top_k_rank = 10
     query = history[-1][0]
     print('history[-1][0]',history[-1][0])
     print('api kind ',api_kind)