Add ansible, some notes about confg management section in progress

Hi guys, good start, I like this idea.

I would suggest we keep the 101 section of CM perhaps tool agnostic and conceptual.

I also am not sure about the direct/indirect part, what that was intended to mean, and think maybe deployment should be a seperate section.

As many (ALL) of these tools change frequently and have massive docs, I think to some extent we could just talk about conceptual things and link to the main documentation.

We should probably try to avoid marketable statements about "is the best" and so on, and mainly highlight what is out there so people can figure it out.   (Similar to the matrix on the Wikipedia configuration management page).