Broken link

[552020]

At the bottom of the page https://exercism.org/tracks/elm/exercises/grade-school, the link in the "Source" section (Source
A pairing session with Phil Battos at gSchool doesn't exist anymore.

[ceddlyburge]

Thanks Stefano, you're right this link is no longer valid, and I can't find anything to replace it with. This is a problem across all the tracks. I've messaged to discuss how best to resolve it.