This is an internal template for documentation used by AOE for open source TYPO3 extensions.
While you are inside the extension for which you want to create the documentation, clone this repository in the folder Documentation:
git clone https://github.com/AOEpeople/sphinx_ext_template.git Documentation
There are some files what you do not need / want, so we will remove them.
rm -rf -- Documentation/.git/
rm Documentation/README.md
You may use this template for your own extensions under the condition that you remove all references to AOE.