Unable to build docs following the instructions

Steps to reproduce

1. Follow instructions to contribute to the documentation on the Contribute to Jami page until make clean && make html

Expected result

Docs build successfully.

Actual result

Docs do not build.

Discussion

The docs do not build with versions of sphinx 6.0.0 or higher. As a workaround, it is possible to run pip install --upgrade sphinx==5.3.0.

changed the description

mentioned in commit 700130a0