Append an entry for the doc in the given infobox

Property definitions

nitc :: htmlight $ MDoc :: fill_infobox
	# Append an entry for the doc in the given infobox
	fun fill_infobox(res: HInfoBox)
	do
		if content.length < 2 then
			res.new_field("doc").text(content.first)
			return
		end
		var c = res.new_dropdown("doc", content.first)
		for x in content.iterator.skip_head(1) do
			c.append x
			c.add_raw_html "<br>"
		end
	end
src/htmlight.nit:425,2--437,4