fix docs about docs.

I wanted to make sure a fix to 'goal markdown' didn't break 'goal confluence'.
So I had to get 'goal confluence' working. Along the way, figured out our
instructions were wrong, d'oh

Testing Done:
published a couple of pages to a wiki.

Bugs left over: 395

Bugs closed: 385, 387

Reviewed at https://rbcommons.com/s/twitter/r/730/