Require sphinx < 4.0.0 (!238) · Merge requests · lscsoft / ligo.skymap · GitLab

Leo P. Singer requested to merge leo-singer/ligo.skymap:sphinx-lt-4.0.0 into master May 09, 2021

This is a workaround for https://github.com/mgaitan/sphinxcontrib-mermaid/issues/72.