[Checkins] [zopefoundation/Zope] ff46d7: - combined the installation instructions

[Jens Vagelpohl]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/Zope
  Commit: ff46d7109b8111901ec96788b62a72840f8a8899
      https://github.com/zopefoundation/Zope/commit/ff46d7109b8111901ec96788b62a72840f8a8899
  Author: Jens Vagelpohl <jens at netz.ooo>
  Date:   2019-04-03 (Wed, 03 Apr 2019)

  Changed paths:
    R docs/INSTALL-buildout.rst
    R docs/INSTALL-pip.rst
    R docs/INSTALL-pipenv.rst
    A docs/INSTALL.rst
    M docs/index.rst

  Log Message:
  -----------
  - combined the installation instructions