Git Submodules are not SVN Externals

一直在寻找Git跟TFS里面类似SVN Externals的替代方案, 今天终于找到了GIT里面的替代方案，在此做个备注

http://alexking.org/blog/2012/03/05/git-submodules-vs-svn-externals

http://www.speirs.org/blog/2009/5/11/understanding-git-submodules.html

https://help.github.com/articles/what-are-the-differences-between-svn-and-git/

https://help.github.com/articles/which-remote-url-should-i-use/