I have seen it is possible to use html in the description of a picture.
When I do :
description="line 1<br/>line 2" or
description="<p>line 1</p><p>line 2</p>", I get an error "XML Parser error > required on line 3".
It works with
description="line 1 <a href="www.google.com">line 2"</a> but other html tags are not working.
Is there any solution to see the description of a picture on many lines ?