The bug is on API section page at least. After choosing and clicking a method on mobile menu it doesnt close, staying in front of the documentation even after the url has changed.

Go to mobile mode on browser, or open Jest docs on your phone.
Click on the menu, next to API Reference.
After clicking the menu and choosing a section, the menu should close and we should be at that part of the page.
Happy to accept PR fixing that :) either here or in Docusaurus
Docusaurus (on their own site) behaves correctly, so it's something weird with our setup
Id also want to fix that if possible
PR welcome 馃檪
Investigated this a little bit and made an issue on Docusaurus: https://github.com/facebook/Docusaurus/issues/1254
It does not appear to be a wrong setup on the Jest side, but an actual bug on some Markdown parsing on the Docusaurus side...
Thanks @Luanf! When they fix and release an update, we'll upgrade on our side and close this issue 馃檪
Upstream fix has landed, just waiting for a release now