[Checkins] [zopefoundation/Zope] 9bfad4: - added systemd integration information

[Jens Vagelpohl]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/Zope
  Commit: 9bfad485bee432263ccb6c565b9a06e12e5c749d
      https://github.com/zopefoundation/Zope/commit/9bfad485bee432263ccb6c565b9a06e12e5c749d
  Author: Jens Vagelpohl <jens at mineralware.com>
  Date:   2019-05-08 (Wed, 08 May 2019)

  Changed paths:
    M docs/operation.rst

  Log Message:
  -----------
  - added systemd integration information