[Checkins] [zopefoundation/zope.interface] 654a56: Add supported versions badge.

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/zope.interface
  Commit: 654a56c071b42404eebd562e9235c1ee07da66ea
      https://github.com/zopefoundation/zope.interface/commit/654a56c071b42404eebd562e9235c1ee07da66ea
  Author: Michael Howitz <mh at gocept.com>
  Date:   2018-02-21 (Wed, 21 Feb 2018)

  Changed paths:
    M README.rst

  Log Message:
  -----------
  Add supported versions badge.