document the triage work

policy/tpa-rfc-5-gitlab.md

@@ -82,6 +82,10 @@ processed into some other queue.
 
 [Kanban]: https://en.wikipedia.org/wiki/Kanban_(development)
 
+Triage should happen at least once a week. The person responsible for
+triage should be documented in the topic of the IRC channel and rotate
+every other week.
+
 ## Documentation: GitLab wiki
 
 We are currently using ikiwiki to host our documentation. That has