docs: Setup jupyterbook

[lsetiawan]

Overview

Currently, there is only one notebook called demo in the docs folder and there is no system to render any docs. Let's setup Jupyterbook so that we can add additional docs later. Instruction to create a sample book and fill with necessary details can be found in: https://jupyterbook.org/en/stable/start/create.html

Action Items

• [x] Add _config.yml file
• [x] Add _toc.yml file
• [x] Add initial intro.md

[anujsinha3]

Done: https://mawpy.readthedocs.io/en/latest/intro.html