Start on a 'getting started' guide
    
    This adds some "getting started" documentation, based off of the wiki
    articles for getting started[0][1]. It's far from complete, but it's a
    nice place to start.
    
    [0] https://fedoraproject.org/wiki/Infrastructure/GettingStarted
    [1] https://fedoraproject.org/wiki/Infrastructure_Apprentice
    
    Signed-off-by: Jeremy Cline <jeremy@jcline.org>