message: Add change log entry for v2.8.1
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/
  +## [2.8.1] - 2019-11-22
  +
  +Thanks to [@Imballinst](https://github.com/Imballinst) for the bug fix!
  +
  +### Fixed
  +
  +- [Add colon between the hour and minutes for `formatRFC3339`](https://github.com/date-fns/date-fns/pull/1549). [See #1548](https://github.com/date-fns/date-fns/issues/1548).
  +
  ## [2.8.0] - 2019-11-19
  Kudos to [@NaridaL](https://github.com/NaridaL), [@Zyten](https://github.com/Zyten), [@Imballinst](https://github.com/Imballinst), [@leshakoss](https://github.com/leshakoss) and [@Neorth](https://github.com/Neorth) for working on the release.
  @@ -1871,7 +1879,8 @@ If you're upgrading from v2 alpha or beta, [see the pre-release changelog](https
  - `startOfDay`
  -[unreleased]: https://github.com/date-fns/date-fns/compare/v2.8.0...HEAD
  +[unreleased]: https://github.com/date-fns/date-fns/compare/v2.8.1...HEAD
  +[2.8.1]: https://github.com/date-fns/date-fns/compare/v2.8.0...v2.8.1
  [2.8.0]: https://github.com/date-fns/date-fns/compare/v2.7.0...v2.8.0
  [2.7.0]: https://github.com/date-fns/date-fns/compare/v2.6.0...v2.7.0
  [2.6.0]: https://github.com/date-fns/date-fns/compare/v2.5.1...v2.6.0
  