Added link to CR exit criteria from the Status section, as requested by the Director.

Author: bert-github

css3-speech/Overview.src.html

@@ -129,6 +129,9 @@ <h3 class="no-num no-toc" id="maturity">Maturity Level</h3>
       step as per the <a href="http://www.w3.org/Consortium/Process/tr#cfi">W3C Recommendation Track
         process</a> is to publish a Candidate Recommendation and to announce a Call for
       Implementations. </p>
+    <p>Before the specification can progress to Proposed
+      Recommendation, the <a href="#exit">CR exit criteria</a> must
+      be met.</p>
     <p id="at-risk">The following features are at-risk and may be dropped at the end of the
       Candidate Recommendation period if there has not been enough interest from implementers:
       'voice-balance', 'voice-duration', 'voice-pitch', 'voice-range', and 'voice-stress'. </p>