Example name requires updating to match repo name

[kattni]

The example is currently logger_simpletest.py and should be renamed to logging_simpletest.py to match the CircuitPython library standards.

The lines including this file name in the docs/examples.rst file must also be updated to reflect the name change, e.g.:

.. literalinclude:: ../examples/current_file_name.py
    :caption: examples/current_file_name.py
    :linenos:

would be updated to:

.. literalinclude:: ../examples/current_file_name_changed.py
    :caption: examples/current_file_name_changed.py
    :linenos:

[jimbobbennett]

@kattni - I was about to do this, but noticed it has already been done!

[FoamyGuy]

@jimbobbennett Thank you for your willingness to work on it and pointing out that it's complete already. If you are interested in tackling a different "good first issue" type small change, there is one here: adafruit/circuitpython-org#454. If you want to work on that one I can help you if needed, feel free to ping me on that issue, or in the #help-with-circuitpython channel in the Adafruit discord.