[1.5.x] Fixed #21264 -- Incorrect RST usage in docs

Backport of 8fc63087f6 from master

docs/topics/http/shortcuts.txt

@@ -167,7 +167,8 @@ This example is equivalent to::
 
    The arguments could be:
 
-   * A model: the model's `get_absolute_url()` function will be called.
+   * A model: the model's :meth:`~django.db.models.Model.get_absolute_url()`
+     function will be called.
 
    * A view name, possibly with arguments: :func:`urlresolvers.reverse
      <django.core.urlresolvers.reverse>` will be used to reverse-resolve the