The Textile Markup (2.4) Reference for Textpattern
1) An image from another domain:
!http://textpattern.net/wiki/skins/textbook/images/logo.png!
2) Use () parentheses to include “alt” text:
!/img/newcarver.png(the new carver)!
3) Combine with a link for an image link:
!/img/newcarver.png!:http://textpattern.com/
Paste code into the box above.