Tweak quickstart to show newest users first in list view

Author: tomchristie

docs/tutorial/quickstart.md

@@ -68,7 +68,7 @@ Right, we'd better write some views then.  Open `tutorial/quickstart/views.py` a
         """
         API endpoint that allows users to be viewed or edited.
         """
-        queryset = User.objects.all()
+        queryset = User.objects.all().order_by('-date_joined')
         serializer_class = UserSerializer