[WIP] Fixes 224: Pin Sphinx dependencies

[bnubald]

Summary

Fixes #224

Attempting to build the Jupyter book with current requirements file fails. This PR pins the Sphinx's dependencies which have been updated and are not backwards compatible with older versions (<5.0), this is to allow the currently pinned jupyter-book version (0.12.3) to be kept at that version.

List of changes proposed in this PR (pull-request)

• Pinning Sphinx dependencies in both the environment.yml and requirements.txt files.

Any feedback would be appreciated, especially if others are running into the same issue.

What should a reviewer concentrate their feedback on?

• [ ] Whether should pin Sphinx dependencies as suggested?
• [ ] Everything looks ok?

Acknowledging contributors

• [ ] All contributors to this pull request are already named in the table of contributors in the README file.
• [x] The following people should be added to the table of contributors in the README file: bnubald

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[acocac]

@bnubald thanks for opening the PR. I think we can close this PR as #226 works without pinning Sphinx's dependencies.

[bnubald]

@bnubald thanks for opening the PR. I think we can close this PR as #226 works without pinning Sphinx's dependencies.

Sure!

Had thought there might have been a reason for keeping jupyter-book pinned to the older version, but happier with the updated jupyter-notebook version. 😄

Closing in exchange for #226.