eliot: Edited language in <noscript> recommendation

eliot: Edited language in <noscript> recommendation

http://dev.w3.org/cvsweb/html5/html-xhtml-author-guide/html-xhtml-authoring-guide.html?r1=1.29&r2=1.30&f=h

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RCS file: /sources/public/html5/html-xhtml-author-guide/html-xhtml-authoring-guide.html,v
retrieving revision 1.29
retrieving revision 1.30
diff -u -d -r1.29 -r1.30
--- html-xhtml-authoring-guide.html	29 Sep 2010 22:33:31 -0000	1.29
+++ html-xhtml-authoring-guide.html	29 Sep 2010 22:38:18 -0000	1.30
@@ -696,7 +696,7 @@
 
 	<div id="elements-that-cannot-be-used" class="section">
 	<h3><span class="secno">6.2 </span>Elements that Cannot Be Used in Polyglot Markup</h3>
-		<p>The <code>&lt;noscript&gt;</code> element must not be used in XML documents. [<cite><a href="#bib-HTML5" rel="biblioentry" class="bibref">HTML5</a></cite>]</p>
+		<p>Polyglot markup does not use the <code>&lt;noscript&gt;</code> element, because the <code>&lt;noscript&gt;</code> element must not be used in XML documents. [<cite><a href="#bib-HTML5" rel="biblioentry" class="bibref">HTML5</a></cite>]</p>
 	</div>