Corrected a markup problem with an example in the class-based view docs....

you can't just apply a function decorator to the method -- you need to

transform it into a method decorator first. The ``method_decorator``

decorator transforms a function decorator into a method decorator so

that it can be used on an instance method.

that it can be used on an instance method. For example::

    from django.contrib.auth.decorators import login_required

    from django.utils.decorators import method_decorator