identicon-0.2.2: CHANGELOG.md

## Identicon 0.2.2

* Improved documentation and metadata.

## Identicon 0.2.1

* Added `Semigroup` and `Monoid` instances for `Layer`.

## Identicon 0.2.0

* Added benchmarks.

* Renamed `applyWords` to `applyBytes` (method of type class `ApplyBytes`).
  It's unlikely that anyone uses it though as it's more of internal
  machinery.

## Identicon 0.1.0

* Initial release.