tiger 0.2.1

Tiger hash function
Documentation
# Changelog

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## 0.2.1 (2022-02-17)
### Fixed
- Minimal versions build ([#363])

[#363]: https://github.com/RustCrypto/hashes/pull/363

## 0.2.0 (2021-12-28)
### Added
- `Tiger2` variant ([#217])

### Changed
- Update to `digest` v0.10 ([#217])

[#217]: https://github.com/RustCrypto/hashes/pull/217

## 0.1.0 (2021-02-05)
- Initial release