The two referenced documentcloud repos have moved. This is the volo error I receive.
$ volo add -amd documentcloud/underscore exports=_
api.github.com/repos/documentcloud/underscore/tags does not exist. Is this a private repo [n]? n
Error: api.github.com/repos/documentcloud/underscore/tags does not exist. Is this a private repo [n]?
The two referenced documentcloud repos have moved. This is the volo error I receive.
I have fixed this documentation.