Fixed #20286 - Typo in static files docs.

        {% load staticfiles %}

        <img src="{% static "my_app/myexample.jpg" %}" alt="My image"/>

3. Store your static files in a folder called ``static`` in your app. For

4. Store your static files in a folder called ``static`` in your app. For

   example ``my_app/static/my_app/myimage.jpg``.

Now, if you use ``./manage.py runserver``, all static files should be served