RTD builds stopped working

[jepler]

https://readthedocs.org/projects/circuitpython/builds/21473048/:

Error

Your documentation did not generate an 'index.html' at its root directory. This is required for documentation serving at the root URL for this version.

Build #21461183 succeeded (272a2dcdb0230cd13a6c7cc974805a919ef13a8d).

Build #21473048 failed (aecaab779bd90a2d6a074bada054fab6dc6b6399).

The first failed build had my recent changes to how shared-bindings-matrix was generated, so I'm a prime suspect. :)

[jepler]

No, it's this: https://blog.readthedocs.com/builds-without-index/