Removed some repetition in djangoproject/templates/docs/doc.html.
Removed some repetition in djangoproject/templates/docs/doc.html.

nanuxbe/django,django/djangoproject.com,django/djangoproject.com,nanuxbe/django,nanuxbe/django,django/djangoproject.com,django/djangoproject.com,nanuxbe/django,django/djangoproject.com,django/djangoproject.com