add a news item about a screencast I did

[ikiwiki] / doc / news / ikiwiki_screencast.mdwn

I've put together a short screencast that coovers approximatly the first
half of the [[setup]] document, annd includes a demo of setting up a blog
using ikiwiki.

<http://kitenet.net/~joey/screencasts/ikiwiki_blog/>

Is this useful? Should I go on to cover the second half of setup; checking
it into revision control and setting up a CGI? --[[Joey]]