Helper wizard UX for `jx admin` could be a bit clearer

[rawlingsj]

Some of the questions could give a bit more context, what is the repo for when asking for a name for example, and not sure folks will know what a git operator is when being asked to install it. I wonder if this should ask apply installer? or something?

? git server for the new git repository: https://github.com
? git owner (user/organization) for the new git repository: cb-kubecd
? git repository name: jr-dev8
? Do you wish to use rawlingsj as the Git user name: (Y/n)

? do you want to install the git operator into the cluster? [? for help] (Y/n)