hspec-megaparsec-0.2.1: CHANGELOG.md

## Hspec Megaparsec 0.2.1

* Refreshed obsolete documentation for `shouldFailWith` and how it reports
  not matching parse errors.

## Hspec Megaparsec 0.2.0

* This version of `hspec-megaparsec` should be used with Megaparsec 5.

## Hspec Megaparsec 0.1.1

* Make it pass tests with Megaparsec 4.4.0 and later.

## Hspec Megaparsec 0.1.0

* Initial release.