message: Add changelog entry for eachMonthOfInterval and eachYearOfInterval
diff: @@ -8,6 +8,14 @@ This change log follows the format documented in [Keep a CHANGELOG].
  [semantic versioning]: http://semver.org/
  [keep a changelog]: http://keepachangelog.com/
  +## Unreleased
  +
  +Thanks to [@mborgbrant](https://github.com/mborgbrant).
  +
  +### Added
  +
  +- [Added `eachMonthOfInterval` and `eachYearOfInterval`](https://github.com/date-fns/date-fns/pull/618).
  +
  ## [2.8.1] - 2019-11-22
  Thanks to [@Imballinst](https://github.com/Imballinst) for the bug fix!
  