Akka Getting Started Tutorial

Hi Guys!

I’m doing the Tutorial of the Getting Started section on Akka’s documentation, it is all good and incredible well written, but in part 3 when we starting writing tests, I sense a lack of information on where to get the implicit system (ActorSystem) or how to setup the ScalaTest to use Akka Testkit.

Would be possible to improve the code on the documentation or at least in case it becomes bigger and optionated over the test suite used, we could point the user to Testkit Docs where it has already an example with ScalaTest ?