initial commit with sphinx docs

[brandonjnelsonFDA]

(docs_sphinx), unclear how to merge with Miguels demo (docs_demo), stopping here

This is quickly copied from PediatricIQphantoms, a nice feature is the autodocumentation of classes and functions:

If we can merge with Miguel's demo, that would be cool, may ask him for help/ideas.

More on sphinx

[brandonjnelsonFDA]

Working now!

Clicking on the "Docs" tab opens up the sphinx page, which includes auto-generated code and other info, now the two sites are merged.

To edit sphinx home page, edit this file: docs/sphinx/source/index.rst and any other files in the docs/sphinx/source folder, then when ready to publish, run bash build_docs.sh

See the current readme instructions for viewing the site locally.

This is still a rough draft but now we can edit and improve the docs website over time

[brandonjnelsonFDA]

See also's Dhaval's rst docs template which has more simplified examples for using sphinx: https://github.com/DIDSR/rst_template