ACTION-93: Draft language for Google site pages

I have proposed language at the top of the Frontmatter page and copied in
text below.

https://sites.google.com/site/wcag2ict/home/--frontmatter-for-wcag2ict?pli=1

<proposed text>
***************NOTICE***********************************************


This work space is being phased out and is no longer kept
updated with the latest task force agreements. Please refer to
the most recent WCAG2ICT public draft at
http://www.w3.org/TR/wcag2ict/



***********************************************************************
</proposed text>

This doesn't get someone to our latest agreements but we don't really have
another option since we are not keeping an editor's draft updated as we go
along.

Please review and comment.

Andi