another slight change per #111
Write prose and examples for <zone> for supp-images.html
closed with commit #2722
tweak header in supp-images
in response to Charlotte's last query - @source and @resp are now allowed to appear on <div>. As for best practice for translations - They could nest within a translation div, although the example given above has some bits that aren't really parallel. - There is an overall <div type="translation"> with a <head> within it. Then the <head> repeats inside the next two translations, but not in the third. Maybe the repeated <head> should only be on the outermost div. In discussion, we agreed that ideally...
Inline editorial correction of previous edition
Partially done with commit [r2695].