What should I add/change in e.g. bp-groups-filters.php so it is possible to write rel=”nofollow” in a group description?

[@tyckr Participant 15 years, 3 months ago]

I followed the instructions by @r-a-y: https://buddypress.org/community/groups/how-to-and-troubleshooting/forum/topic/allow-full-html-functionality-for-group-admins-no-code-stripping/