added book

app.py

@@ -72,6 +72,6 @@ def chat():
     return result['answer']
 
     
-# if __name__ == '__main__':
-#     app.run(host="0.0.0.0", port= 8080, debug= True)
+if __name__ == '__main__':
+    app.run(host="0.0.0.0", port= 8080, debug= True)