Currently the installation guides for Windows, OS X, and Linux have this at the bottom:

To start using and see more information: Virtual Environments docs.

It seems helpful to replace that GitHub link (http://github.com/kennethreitz/python-guide/blob/master/docs/dev/virtualenvs.rst) with the nicely formatted website version of that document (http://docs.python-guide.org/en/latest/dev/virtualenvs/). I could make that change if it's a good idea (it's a simple change), but I'm wondering if there's a good reason why it's like that.