[cssom-values] acknowledge anne's original work

Author: skynavga

cssom-values/Overview.html

@@ -349,6 +349,8 @@ <h2 class="no-num" id="acknowledgments">Acknowledgments</h2>
 
   for contributing to this specification.</p>
 
+  <p>Special thanks to Anne van Kesteren who authored the material upon which this work is based.</p>
+
   <!-- XXX NOTES
 
   -->

cssom-values/cssom-values-source

@@ -316,6 +316,8 @@
 
   for contributing to this specification.</p>
 
+  <p>Special thanks to Anne van Kesteren who authored the material upon which this work is based.</p>
+
   <!-- XXX NOTES
 
   -->