Edit Sphinx generated documentation format

[debeshmandal]

Documentation is generated using Sphinx. This is deployed using CI. The format of this is not ideal and the information could be rearranged.

To do this, we can edit the *.rst files in the docs/ folder and also the conf.py file found there.

To test the new view, a user can manually do the following:

cd docs
make html

And then open the result in their web browser.

This issue (and related pull request) are to be used to experiment with this appearance.