Link to Pierce's Fall 2012 class

staging/index.html

@@ -31,6 +31,7 @@
 <div class="project">
 <h2>Used by:</h2>
 <ul>
+<li>CIS 670 at Penn <a href="http://www.cis.upenn.edu/~bcpierce/courses/670Fall12/">(Fall 2012)</a></li>
 <li>6.892 at MIT <a href="http://stellar.mit.edu/S/course/6/fa11/6.892/">(Fall 2011)</a></li>
 <li>CS252 at Harvard <a href="http://www.cs.harvard.edu/~adamc/cpdt/">(Fall 2008)</a></li>
 </ul>