Added missing backtick in instances docs.
@@ -837,7 +837,7 @@ duplicated. That also means you cannot use those methods on unsaved objects.
.. admonition:: Overriding extra instance methods
In most cases overriding or inheriting ``get_FOO_display()``,
- ``get_next_by_FOO()``, and ``get_previous_by_FOO()` should work as
+ ``get_next_by_FOO()``, and ``get_previous_by_FOO()`` should work as
expected. Since they are added by the metaclass however, it is not
practical to account for all possible inheritance structures. In more
complex cases you should override ``Field.contribute_to_class()`` to set
