Alerting: Update docs to mention the requirement of persistent disks (#36808)
Alerting: Update docs to mention the requirement of persistent disks (#36808)

Signed-off-by: Ganesh Vernekar <101acfd19ae0f3f87f861c64d0a8873056704c2b@gmail.com>
grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana