[packages/sphinx-pdg] (3 commits) ...Merge branch 'SPHINX_4'

[qboosh]

Summary of changes:

  815460e... - updated to 4.5.0, works better with docutils 0.18 (though (*)
  ec1d9b7... - sphinxcontrib-asyncio before 0.3.0 is not ready for Sphin (*)
  3f0e09d... Merge branch 'SPHINX_4'

(*) This commit already existed in another branch; no separate mail sent