[css-values] Update Changes section

Author: fantasai

css-values/Overview.html

@@ -2367,6 +2367,17 @@ <h3 class=no-num id=cr-exit-criteria> CR exit criteria</h3>
 
   <h2 class=no-num id=changes>Changes</h2>
 
+  <p>Changes since the <a
+   href="http://www.w3.org/TR/2013/CR-css3-values-20130730/">30 July 2013
+   Candidate Recommendation</a> are:
+
+  <ul>
+   <li>Relaxed unnecessary restrictions on <a
+    href="#identifier-value"><var>&lt;custom-ident></var></a>. Require specs
+    referencing it to be clear about excluded keywords, because the new rule
+    isn't as simple.
+  </ul>
+
   <p>Changes since the <a
    href="http://www.w3.org/TR/2012/CR-css3-values-20120828/">28 August 2012
    Candidate Recommendation</a> are:

css-values/Overview.src.html

@@ -1846,6 +1846,14 @@ <h3 class="no-num" id="cr-exit-criteria">
 
 <h2 class="no-num" id="changes">Changes</h2>
 
+  <p>Changes since the <a href="http://www.w3.org/TR/2013/CR-css3-values-20130730/">30 July 2013 Candidate Recommendation</a> are:
+
+  <ul>
+    <li>Relaxed unnecessary restrictions on <var>&lt;custom-ident></var>.
+        Require specs referencing it to be clear about excluded keywords,
+        because the new rule isn't as simple.
+  </ul>
+
   <p>Changes since the <a href="http://www.w3.org/TR/2012/CR-css3-values-20120828/">28 August 2012 Candidate Recommendation</a> are:
 
   <ul>