[Checkins] [zopefoundation/Zope] 57bcb9: Add some hints.

[GitHub]

  Branch: refs/heads/2.13
  Home:   https://github.com/zopefoundation/Zope
  Commit: 57bcb951066bb3b9fea3783db983ecfd99939cb8
      https://github.com/zopefoundation/Zope/commit/57bcb951066bb3b9fea3783db983ecfd99939cb8
  Author: Michael Howitz <mh at gocept.com>
  Date:   2018-04-23 (Mon, 23 Apr 2018)

  Changed paths:
    M doc/maintainers/RELEASING.rst

  Log Message:
  -----------
  Add some hints.