You may modify this file to match your particular providers and domains. See [the javascript docs]({{site.github.url}}/js) and [the provider docs]({{site.github.url}}/provider-list) for more details. If you are using other providers, you will likely need to make a `creds.json` file with api tokens and other account information.
This will actually generate `zones/example.com.zone` for you. The bind provider is more configurable, and you can read more information [here.]({{site.github.url}}/providers/bind)