[Feature Request] Add all classes to the Docs

[gwwatkin]

Issue Description

We want all classes to be visible in the Sphinx API Docs on Read The Docs.

Proposed Solution

@alexnguyenn suggests adding manually to the docs/source folder. Then every PR needs to add the docs for the class they are adding.

Another option could be to add everything as auto generated.

[alexnguyenn]

Right now I prefer adding them manually using autodoc. Configuring the Sphinx's auto generating option will take a lot of time and it's not something I am keen on doing right now.