[$] Mentoring and diversity for Python

<p>A two-part session at the 2018 Python Language Summit tackled the coredeveloper diversity problem from two different angles. Victor Stinneroutlined some work he has been doing to mentor new developers on their pathtoward joining the core development ranks; he has also been trying todocument that path. Mariatta Wijaya gave a very personal talk thatdescribed the diversity problem while also providing some concrete actionitems that the project and individuals could take to help make Python morewelcoming to minorities.