Run notebooks for docs

[N-Wouda]

This PR:

• Closes Run example notebooks in CI #152.
• Adds and passes relevant tests.
• Has well-formatted code and documentation.

Notes:

• It is essential that you add a test when making code changes.
  This keeps the code coverage level up, and helps ensure the changes work as intended.
• When fixing a bug, you must add a test that would produce the bug in the master branch, and then show that it is fixed with the new code.
• New code additions must be well formatted. Changes should pass the pre-commit workflow, which you can set up locally using pre-commit.
• Docstring additions must render correctly, including escapes and LaTeX.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.46%. Comparing base (b53c225) to head (8c74516).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #175   +/-   ##
=======================================
  Coverage   99.46%   99.46%           
=======================================
  Files          30       30           
  Lines         748      748           
=======================================
  Hits          744      744           
  Misses          4        4           

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[leonlan]

LGTM