[Checkins] [zopefoundation/Zope] 929c8e: Add coverage badge + fix alt texts of PyPI badges.

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/Zope
  Commit: 929c8e9c8201df8fe769183d3bcddaefa0d7db1b
      https://github.com/zopefoundation/Zope/commit/929c8e9c8201df8fe769183d3bcddaefa0d7db1b
  Author: Michael Howitz <mh at gocept.com>
  Date:   2018-04-23 (Mon, 23 Apr 2018)

  Changed paths:
    M README.rst

  Log Message:
  -----------
  Add coverage badge + fix alt texts of PyPI badges.
[skip ci]