https://www.cnblogs.com/kpengfang/p/5962233.html git warning: LF will be replaced by CRLF in 解决办法
https://blog.csdn.net/nly19900820/article/details/73613654 git修改文件后，怎么提交到远程仓库
https://blog.csdn.net/u010325193/article/details/80777158 git 提交多个文件 文件夹
https://www.cnblogs.com/ludashi/p/8093145.html Git知识总览(三) 分支的创建、删除、切换、合并以及冲突解决
https://www.cnblogs.com/aimqqroad-13/p/7456296.html git批量删除文件和批量提交
https://blog.csdn.net/u012491783/article/details/80348669 github上如何修改别人的开源项目并提交
git - 简易指南
http://www.bootcss.com/p/git-guide/