Fix typo.
@ -132,7 +132,7 @@ The following configuration values are used internally by Flask:
default static file handler) and
:func:`~flask.send_file`, as
:class:`datetime.timedelta` or as seconds.
seconds. Override this value on a per-file
Override this value on a per-file
basis using the
:meth:`~flask.Flask.get_send_file_max_age`
hook on :class:`~flask.Flask` or