Who owns the Github Flavored Markdown Spec?

I’ve submitted a PR that “improves” the html rendering of GFM task lists, but it fails compliance tests that are based on hardcoded HTML outputs originating in the Github Flavored Markdown Spec.

I’d like to find an owner of this spec, or otherwise get a pointer to the team currently responsible for it, to see if they’d accept alternative HTML outputs for the task list input.

For the curious, the rendering problem statement
And the PR.

We had some trouble locating the source previously. Looking at the current github organisation on GitHub, the source appears to still be in the github/cmark-gfm repo; you could try creating an issue there.

Also of interest perhaps: