identicon-0.2.3: CHANGELOG.md

## Identicon 0.2.3

* Maintenance release with newer dependencies.

## 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` (the method of type class
  `ApplyBytes`).

## Identicon 0.1.0

* Initial release.