Indicating the service provider is loaded when app is booting

[bkuhl]

This PR attempts to make it clear that this portion of the configuration belongs in boot() and not register()

[drbyte]

Hmmm ... Registering of service providers is normally done in register().

boot() is for triggering its features (configuring, initializing, instantiating related objects, etc) after it's been registered.

[bkuhl]

Got it. This has been updated