hetzner-0.1.2.0: changelog.md

## 0.1.2.0
* New function: `getTokenFromEnv`. This function allows the user
  to obtain a token from the `HETZNER_API_TOKEN` environment variable.
* Support for (private) networks.
* New instances for the `Token` type: `IsString`, `Show`, `Eq`, `Ord`.

## 0.1.1.0
* Added support for volumes.
* Fixed parsing of HTTP 204 responses.

## 0.1.0.0
* Initial release.