[Checkins] [zopefoundation/grokcore.content] 5219ae: update changelog

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/grokcore.content
  Commit: 5219ae1a2c5fe60cc79d23108033e744123574b3
      https://github.com/zopefoundation/grokcore.content/commit/5219ae1a2c5fe60cc79d23108033e744123574b3
  Author: Jan-Wijbrand Kolman <jkolman at minddistrict.com>
  Date:   2018-01-12 (Fri, 12 Jan 2018)

  Changed paths:
    M CHANGES.txt

  Log Message:
  -----------
  update changelog