how to add the green folder as the pic in github

Question

what i want to know it is that how to how to add the green folder as the pic in github?

and then if i use TortoiseGit ,how do this?

Answer 1

Those green folder are submodules (special git entries)

When you clone that repo, you need a:

git submodule update --init

That will update those folder in your local working tree.
(or "TortoiseGit > Submodule update.")

Starting April, 30th 2013, when you view a repository with a submodule on github.com, you get useful links and information for the submodule.