Make screen examples look nicer

[timlnx]

The OpenShift Enterprise Deployment Guide has a nice thing going on here:

https://access.redhat.com/site/documentation/en-US/OpenShift_Enterprise/1/pdf/Deployment_Guide/OpenShift_Enterprise-1-Deployment_Guide-en-US.pdf

[timlnx]

Trimmed down a lot of cruft in shell prompts in 27aadec

There's a lot of awkward whitespace now that needs to be cleaned up along with some lines that could be wrapped.

[timlnx]

As part of edits in #43 i'm going to make the simple screen/informalexamples all into proper examples w/ titles.