Reference HTML5 spec when defining @datetime.
--- a/microdata-rdf/index.html Thu Nov 17 10:00:33 2011 -0800
+++ b/microdata-rdf/index.html Thu Nov 17 10:06:17 2011 -0800
@@ -417,6 +417,8 @@
value for
<code><cite><a href="http://www.w3.org/TR/2011/WD-microdata-20110525/#dom-itemvalue">element.itemValue</a></cite></code>
with a datatype depending on its syntax.
+ (See <cite><a href="http://dev.w3.org/html5/spec/Overview.html#the-time-element">The <code>time</code> element</a></cite>
+ in [[!HTML5]]).
</dd>
<dt><adef>itemid</adef></dt><dd>
An attribute containing a URL used to identify the subject of triples associated with this <tref>item</tref>.