[Checkins] [zopefoundation/zope.interface] 3e3e37: Simplify and future-proof tox usage documentation.

[GitHub]

  Branch: refs/heads/roto-drop-py33
  Home:   https://github.com/zopefoundation/zope.interface
  Commit: 3e3e37eeb33922d0712c016fe788a87703f51caa
      https://github.com/zopefoundation/zope.interface/commit/3e3e37eeb33922d0712c016fe788a87703f51caa
  Author: Joni Orponen <j.orponen at 4teamwork.ch>
  Date:   2017-12-28 (Thu, 28 Dec 2017)

  Changed paths:
    M docs/hacking.rst

  Log Message:
  -----------
  Simplify and future-proof tox usage documentation.