Include better dev instructions in docs

[tomschenkjr]

This could always be improved, but two specific items:

• [ ] Include information on the Dev service layer
• [ ] user and password info when setting up service layer

[tomschenkjr]

@nfspeedypur - can you look at the revised documentation and let us know if that's accurate information for the test service layer?

[nfspeedypur]

That information looks good. The user/Pass is correct for the service layer.