Is your feature request related to a problem? Please describe.
I'm always frustrated when I can't click the references at the end of the document and see where something is cited. It would be great to click on, say, [HTML] and see where it was cited from.

Describe the solution you'd like
In the dfn panel, it would be great to have where a citation happened show up there... same as dfns.

Describe alternatives you've considered
None.

Can you or your organization fund the work or help with development?
No.