[Checkins] [zopefoundation/Zope] 4ad04b: Grammar fixes as suggested by @leorochael.

[GitHub]

  Branch: refs/heads/doc-zserver
  Home:   https://github.com/zopefoundation/Zope
  Commit: 4ad04bcdd73bf063f10326791447458676c9bdce
      https://github.com/zopefoundation/Zope/commit/4ad04bcdd73bf063f10326791447458676c9bdce
  Author: Michael Howitz <mh at gocept.com>
  Date:   2018-02-09 (Fri, 09 Feb 2018)

  Changed paths:
    M docs/INSTALL-buildout.rst
    M docs/INSTALL-virtualenv.rst

  Log Message:
  -----------
  Grammar fixes as suggested by @leorochael.
[skip ci]