fix a typo in the offer dates

Author: cewing

index.html

@@ -71,7 +71,7 @@ <h4>Schedule Notes</h4>
         <p>>No class on Nov 26.</p> -->
 
         <h3>Internet Programming in Python</h3>
-        <p><em>Jan 6 - Mar 10, 2014</em></p>
+        <p><em>Jan 6 - Mar 10, 2015</em></p>
         <p>This course emphasizes network-based programming and Web
         applications, how they work and how to program them in Python. Explore
         the underlying principles and their expression in the Python