Exposed Service Bus Secret

[keithdhodo]

Greetings Marcel!
In the AzServiceBusMessage class there is an exposed Service Bus key. I know that the goal is to make it so that the application is simply "runnable." However, I found that I need to change all the endpoints to http anyways and started looking through the code. It might be worth a step in the Readme.md for the user to create their own Service Bus and use their own key.

Thanks!