Fixed #13036: Corrected a typo in the documentation for the TEMPLATE_LOADERS setting.

      'django.template.loaders.app_directories.Loader')

A tuple of template loader classes, specified as strings. Each ``Loader`` class

knows how to import templates from a particular sources. Optionally, a tuple can be

knows how to import templates from a particular source. Optionally, a tuple can be

used instead of a string. The first item in the tuple should be the ``Loader``'s

module, subsequent items are passed to the ``Loader`` during initialization. See

:ref:`ref-templates-api`.