URLDispatcher documentation does not mention UriHandler

The URLDispatcher documentation (https://developer.ubuntu.com/en/apps/qml/tutorials/register-your-app-url-dispatcher/ and https://developer.ubuntu.com/en/start/platform/guides/url-dispatcher-guide/) don't explain how an app should _receive_ a sent URL. The tutorial suggests using Arguments, but actually one should use the (documented) UriHandler (https://developer.ubuntu.com/api/apps/qml/sdk-15.04/Ubuntu.Components.UriHandler/). If the URLDispatcher documentation were to link to this then it would be clearer that it exists and how to use it.