Update fmsforcouncils.html

I have edited this template to reflect the copy changes I made on https://docs.google.com/a/mysociety.org/document/d/1T8OdGumlekYFo2qWQjeaOL4sgMLM_bb5N-_0ZgTp8VY/edit#. Hopefully I have not broken anything.

Warwickshire logo is still in here and needs replacing with Southampton or East Sussex - I don't know how to do that, sorry.