[OSGeoLive] Quickstart 'how to' page and template

[Felicity Brand]

Hello,

I have done some work updating the 'How to document the quickstart
file' page on the wiki and the template for the quickstart.

They should go hand-in-hand (I have linked from each to each other.)
I'm not sure where users might start, so I was trying to cover
different angles of entry.

I would appreciate a review of the page and the template - preferably
by the end of next week which is the conclusion of the Season of Docs
period.

https://trac.osgeo.org/osgeolive/wiki/How%20to%20document%20the%20quickstart%20file

Thanks
Felicity