Fix a broken link in reviewing a PR doc
Fix a broken link in reviewing a PR doc

 * Jekyll attribution link was broken due to internal refactoring.

RaptorRCX/exercism.io,RaptorRCX/exercism.io,tejasbubane/exercism.io,tejasbubane/exercism.io,RaptorRCX/exercism.io,treiff/exercism.io,tejasbubane/exercism.io,RaptorRCX/exercism.io,treiff/exercism.io,tejasbubane/exercism.io,treiff/exercism.io,treiff/exercism.io