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* havea 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.
Added GitHub link and improved wording
Fix indentation
Add note about EditorConfig
Add note about typography
Merge pull request #27 from guardian/less-karaoke

Less Karaoke
Correct characters
Fix merge conflicts