Support footnotes in Markdown

[shenxianpeng]

closes #323

[shenxianpeng]

From my test on the main branch, the CI has failed already without this change.

[miketheman]

From my test on the main branch, the CI has failed already without this change.

Yes, looks like a recent update to docutils or pygments may have changed the output - would you want to make a separate PR that only updates the test outputs based on current dependencies?

[shenxianpeng]

It was Pygments, when I pinned it to v2.18.0, tests passed. maybe we could pin it to 2.18.0 and create a ticket to track and fix it in a future pull request.

only updates the test outputs based on current dependencies?

sure, will do. but I am not sure what you want me how to do. could you explain a bit?

[shenxianpeng]

I’ve opened a new PR (#325) to update the test outputs, and all tests are now passing.

[shenxianpeng]

The test failure has been fixed in 87cbbdd and is ready for review @miketheman