怎么增加活动介绍？

- click http://www.haiounet.com/d/node/add/book?parent=424
- input 标题
- enter detail of the activity in 正文 part
- if you want to add picture, please refer to http://www.haiounet.com/d/content/怎么插入图片？
- click button "Save" at the bottom of the window