// If extensions (or modules to document with autodoc) are in another directory,
// add these directories to sys.path here. If the directory is relative to the
// documentation root, use os.path.abspath to make it absolute, like shown here.
sys.path.insert(0, os.path.abspath(os.path.pardir))
// on_rtd is whether we are on readthedocs.org, this line of code grabbed from docs.readthedocs.org
// https://docs.readthedocs.io/en/latest/faq.html?highlight=environ//how-do-i-change-behavior-for-read-the-docs