Add a little description on the homepage

pyc/templates/index.html

@@ -7,6 +7,16 @@ Labs:
 {% endfor %}
 </ol>
 
+<p>
+pyc is a way to learn Python through competition.
+<br />
+Every week, an assignment is given out.
+<br />
+Submit your code online and be automatically graded and ranked.
+<br />
+If you are interested, please contact raylu.
+</p>
+
 <p>
 {% if authenticated %}
 	<a href="{% url django.contrib.auth.views.logout %}">Logout</a>