Update Django example

Author: miguelgrinberg

examples/server/wsgi/README.rst

@@ -24,8 +24,8 @@ time to the page.
 This is an ideal application to measure the performance of the different
 asynchronous modes supported by the Socket.IO server.
 
-django_example
---------------
+django_socketio
+---------------
 
 This is a version of the "app.py" application described above, that is based
 on the Django web framework.

examples/server/wsgi/django_example/django_example/urls.py

@@ -0,0 +1,16 @@
+django-socketio
+===============
+
+This is an example Django application integrated with Socket.IO.
+
+You can run it with the Django development web server:
+
+```bash
+python manage.py runserver
+```
+
+When running in this mode, you will see a warning indicating that the WebSocket
+transport is not available, which is not supported by this web server.
+
+See the documentation for information on supported deployment methods that you
+can use to add support for WebSocket.