feat: Python API Docs on GitHub Pages

[vi-shruti]

Description of the change

Publishing the Python API docs on GitHub page so that the content is rendered in an easily navigable way.

Motivation

Issue #590: Publish Python API docs somewhere

Type of change

Choose one: Feature request | Documentation

Checklist

• [ ] I have performed a self-review of my code.
• [ ] I have added detailed comments to my code where applicable.
• [ ] I have verified that my change does not break existing code.
• [ ] My PR is based on the latest changes of the main branch (if unsure, please run git pull --rebase upstream main).
• [ ] I am familiar with the Google Style Guide for the language I have coded in.
• [ ] I have read through the Contributing Guide and signed the Contributor License Agreement.

[google-cla[bot]]

Thanks for your pull request! It looks like this may be your first contribution to a Google open source project. Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

View this failed invocation of the CLA check for more information.

For the most up to date status, view the checks section at the bottom of the pull request.