Custom your own join MOTD! Highly free!
This plugin has no documents now xD, because it will definitely spend me a lot of time, especially for this highly free plugin
And there may be more change in the future, so it's hard to keep document and api stable
高度可自定义的加入欢迎信息
文档暂时没写，因为未来功能变动可能比较大所以并未写，而且这么高自定义度了那文档肯定也是又臭又长（