Broken link in docs

Issue #29 on hold
fbauer
created an issue

At the bottom of http://tox.testrun.org/latest/example/pytest.html, there is a link pointing to

http://codespeak.net/py/dist/test/customize.html#constructing-the-package-name-for-test-modules

which does not exist. I looked around but couldn't figure out where it is supposed to be pointing at.

BR Florian