3.GitBook 使用
$ tree book/
book/
├── README.md
└── SUMMARY.mdREADME.md
$ cat book/README.md
# README
This is a book powered by [GitBook](https://github.com/GitbookIO/gitbook).SUMMARY.md
$ cat book/SUMMARY.md
# SUMMARY
* [Chapter1](chapter1/README.md)
* [Section1.1](chapter1/section1.1.md)
* [Section1.2](chapter1/section1.2.md)
* [Chapter2](chapter2/README.md)最后更新于