In "Project groups", project summary shows raw text without markdown

Logged in as 422196@mail.muni.cz:

Reproduction steps:

1. Go to https://kafe.fi.muni.cz/auth/lemmafimuni/groups and observe the 25th Film festival

Expected result: It starts with "###", there are other markdown elements visible...

Actual result: It is shown as user-facing text in some way