Fix a few more ids.

Author: dbaron

css3-transitions/Overview.src.html

@@ -1466,17 +1466,17 @@ <h2 id="acknowledgments">Acknowledgments</h2>
 and all the rest of the
 <a href="http://lists.w3.org/Archives/Public/www-style/">www-style</a> community.</p>
 
-<h2>References</h2>
+<h2 id="references">References</h2>
 
-<h3 class="no-num">Normative references</h3>
+<h3 class="no-num" id=normative-references>Normative references</h3>
 <!--normative-->
 
-<h3 class="no-num">Other references</h3>
+<h3 class="no-num" id=other-references>Other references</h3>
 <!--informative-->
 
 
 
-<h2 class="no-num">Property index</h2>
+<h2 class="no-num" id=property-index>Property index</h2>
 <!-- properties -->