Close #6

docs/structure/index.rst

@@ -31,12 +31,37 @@ an underscore are not shown to users.
 
 For more information, see the `cookiecutter`_ package documentation.
 
+``pyproject.toml``
+^^^^^^^^^^^^^^^^^^
+
+A :abbr:`TOML (Tom's Obvious Minimal Language)` file for `PEP 518`_ Python project
+configuration. At a minimum this file is used to specify the build system of the project,
+but can also be used for configuration for additional packages.
+
+.. note::
+
+    This file replaces the :file:`setup.py` file original used by setuptools.
+
+More information can be found in the `Python packaging user guide`_ and `pip specific`_
+documentation.
+
 ``README.md``
 ^^^^^^^^^^^^^
 
 An overview of the repository with a brief description of its purpose to inform
 people what the project.
 
+``setup.cfg``
+^^^^^^^^^^^^^
+
+A configuration file to provide static metadata used by setuptools. This provides
+information such as the name and version of the package, but can also be used to provide
+additional metadata necessary when publishing a package.
+
+More information can be found in the `Python packaging user guide`_.
 
 .. _detect-secrets: https://github.com/Yelp/detect-secrets
 .. _cookiecutter: https://cookiecutter.readthedocs.io/
+.. _PEP 518: https://peps.python.org/pep-0518/
+.. _Python packaging user guide: https://packaging.python.org/en/latest/tutorials/packaging-projects/#configuring-metadata
+.. _pip specific: https://pip.pypa.io/en/stable/reference/build-system/pyproject-toml/