Support definition lists (finally!)

[LesML] / TESTING / 📤 / dl

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<div xmlns="http://www.w3.org/1999/xhtml"><article lang="en" xml:lang="en"><div class="body"><dl><div><dt><dl><div><dt data-level="1"><p>Nesting is allowed</p></dt><dd data-level="1"><p>And works as expected</p></dd></div></dl></dt><dd><ul><li class="unordered" data-level="1"><p>As can other things</p></li></ul></dd></div><div><dt><p>One</p></dt><dt><p>Two</p></dt><dd><p>Response one</p></dd><dd><p>Response two</p></dd></div><div><dt><p>A trailing versicle creates an empty &lt;dd&gt;</p></dt><dd/></div></dl><ul><li class="unordered"><p>A different kind of list</p></li></ul><dl><div><dt/><dd><p>A leading response creates an empty &lt;dt&gt;</p></dd></div></dl></div></article></div>