update app.py

app.py

@@ -64,4 +64,4 @@ def handle_message(event):
     api.reply_message(event.reply_token, TextSendMessage(text=reply_text))
 
 if __name__ == "__main__":
-    app.run(host='0.0.0.0', port=7860)
+    app.run(host='0.0.0.0', port = 7860)