homepage

Here is an initial patch based on the core developers who responded on core-mentorship.
In response to Ezio's comment (after thinking further), I think the goal would be to provide a list of people that new contributors should feel welcome to add to the nosy list in interest areas that are not otherwise covered (or perhaps on any issue they would like advice on?).
Reasons for limiting this to new contributors and core mentors are (1) to prevent the core developers listed from being added to the nosy list for *every* issue that falls into an area not covered, and (2) in recognition that new contributors benefit from the mentorship and welcome that core mentors are especially interested in providing.
I see that the "core mentorship" label does not fully capture this, but I'm open to other suggestions (e.g. choosing a different label, adding a footnote, or adding another section). Having this be part of the Experts Index simplifies things like populating the tracker pull-down.