Added missing comma.
Link to AD technical help page added

This is an interim solution, will be changed once the moj_template
toolkit is updated.
Copy change

as per:
https://www.pivotaltracker.com/story/show/74849450
Removing duplicate text for copy change
Copy changes

as per ticket:
https://www.pivotaltracker.com/story/show/74844320
Removing the link to AD technical help page

Clive has fixed it in his branch, so this hack is no longer needed
Merge pull request #345 from ministryofjustice/more-copy-changes

More copy changes