Just to clarify I'm looking for a link in Xcode doc or somewhere that shows the workflow for [1] starting with one of the coding examples [2] shows how to do the certificate/provisioning stuff to the point where [3] I can click the build/run button in Xcode and see a string print --> Hello World

Believe it or not, somehow I got this to work (Hello World printed in output shell of Xcode!!!!), by selecting a team and a role that I somehow created a while ago from the Apple Developer website. I'm still looking for (perhaps someone from Apple) to comment on where the simple workflow block diagram is located that shows the ordered sequence of steps to get to this result starting from scratch.