[documentation] a little history for folks

[Steven Peck]

I had a long email but wrote a blog post instead.
http://www.blkmtn.org/contributing-is-about-giving

On the bright side, my workload may actually be lightening up some.  I
have seen the outline for the /about section and like the direction.
I need to sit down and read it again in more depth, then see about
getting it implemented and getting the documentation stuff more
visible in the tree.