DOC: Add dashboard question to FAQ and how to save a plot #768

[rensoostenbach]

This PR addresses the two TODO's in #768:

• Create a Q&A section, something along the lines of: "What happened to the FairlearnDashboard?" [answer should point to the new repo and to our plotting functionality through MetricFrame]
• add a line to the newly created plotting documentation in Remove FairlearnDashboard and replace it with matplotlib-based plots #766 to show how one can save the generated matplotlib plots.

I am unsure if https://fairlearn.org/main/user_guide/assessment.html#fairlearn-dashboard should be completely removed from the assessment page, since the first paragraph of the assessment page still links to it. Perhaps the :ref:'dashboard' should be changed to :ref:'plot'? (intentionally using the wrong quotes here)

[romanlutz]

Love it! Thanks for this. I added just one small comment.

[romanlutz]

This looks great to me. Ideally, you could put a screenshot from the generated docs (only the part you changed, of course) to give reviewers an idea of what it looks like after your change is applied 🙂 In the new PR template that's sort of suggested with a "Screenshots" section but your PR preceeds that I think, so no worries.

[romanlutz]

@rensoostenbach can you post a screenshot of the resulting website?

[rensoostenbach]

@rensoostenbach can you post a screenshot of the resulting website?

Yes ofcourse!

[romanlutz]

Love it! Can one of @fairlearn/fairlearn-maintainers take a look? I approved already so feel free to merge if you are fine with the PR as is.

[adrinjalali]

LGTM

[adrinjalali]

not sure why "Squash and merge" is disabled for me, will wait for the CI to see what happens next.