-----
Notes
-----

.. toctree::
   :maxdepth: 3
   :caption: Contents:
   :includehidden:

   Packages     <development/packages>

..   Machinery    <development/machinery>
..   Formats      <development/formats>
..   Models       <development/models>
..   Themes       <development/themes>
..   Integration  <development/integration>

   Testing      <development/testing>
   Errors       <development/errors>

..   Tools        <tools>
..   Utilities    <utils>
..   Tests        <tests>

Sphinx provides the following tutorials on extention development

`To do Extention <https://www.sphinx-doc.org/en/master/development/tutorials/todo.html>`_
    This provides an introdution to writing directives    
`Recipe Extention <https://www.sphinx-doc.org/en/master/development/tutorials/recipe.html>`_
    This covers directives, roles and domains.

Sphinx provides the following `API <http://www.pythondoc.com/sphinx/ext/appapi.html>`_ for developing `extentions <https://www.sphinx-doc.org/en/master/extdev/>`_ `extentions <http://www.sphinx-doc.org/en/master/usage/extensions/index.html>`.
This covers the development of `Domains <https://www.sphinx-doc.org/en/master/extdev/domainapi.html>`_.