Less Karaoke

There are only a few people here that do Karaoke and it doesn't really
warrant a mention right at the top here in amongst how we program.

We *should* have a section about the culture of the department that
includes things like:

* Karaoke and Guardian Angels
* Running
* The music group(s)
* Lunchtime programming clubs
* Board Game Club
* other things

This stuff is important too, I wasn't sure the best way to present it
though so I've not done that in this PR.
A right single quote mark instead of the ASCII apostrophe (I think that's what it's called) would look better. You can see the difference:

![image](https://cloud.githubusercontent.com/assets/921609/3624859/c14c35e8-0e62-11e4-8718-5a27d391fd21.png)

I'm not always this annoying, I promise. :wink: Just trying to share best practices.