How to edit Blender's API docs?

I was thinking of submitting some changes to Blender’s documentation and went through the setup described in https://docs.blender.org/manual/en/dev/about/contribute/install/index.html. However, I’ve searched through the *.rst in the entire repo and can’t figure out where the API docs are stored. Specifically I’m looking for the document which generates https://docs.blender.org/api/current/bpy.types.Scene.html.

Where can I find it?