Documents example fails tests part 1

[ericsnekbytes]

CI (pytest) fails for the documents example.

Related: #283

Steps to reproduce

1. Follow the README/quickstart for cloning the repo and installing. Instead of moving to hello-world, move to the documents dir and install/run that example (it should build and install successfully).

2. Run pytest --check-links as in the CI workflow, it fails.

Expected behavior

A passing test.

Context

• Operating System and version: Macos 15.4.1
• Browser and version: Chrome Version 136.0.7103.114 (Official Build) (arm64)
• JupyterLab version: 4.4.3

[ericsnekbytes]

Probably related to jupyterlab/jupyter-collaboration#353

Error:

============================================================= FAILURES =============================================================
_ /Users/egentry/workspace_ana/xtest/extension-examples/documents/README.md: https://jupyterlab-realtime-collaboration.readthedocs.io/en/stable/api/interfaces/collaborative_drive.ICollaborativeDrive.html _
https://jupyterlab-realtime-collaboration.readthedocs.io/en/stable/api/interfaces/collaborative_drive.ICollaborativeDrive.html: 404: Not Found