docs(alerting): document `Keep firing for` in Alert rule evaluation intro (#106139)
(cherry picked from commit e1400e67d3)
Co-authored-by: Pepe Cano <825430+ppcano@users.noreply.github.com>
docs(alerting): document `Keep firing for` in Alert rule evaluation intro (#106139)
(cherry picked from commit e1400e67d3)
Co-authored-by: Pepe Cano <825430+ppcano@users.noreply.github.com>