On Tue, Apr 08, 2014 at 10:19:50AM -0700, r-gaia-cs wrote:
> > +you are agreeing that Software Carpentry may redistribute your work under [these licenses][licenses].
> 
> [these licenses][licenses] -> [these licenses](LICENSE.md)

Alternatively you can just update the reference:

  [licenses]: LICENSE.md

but I approve of the internal link :).