update example config

uptime.config.ts

@@ -119,6 +119,11 @@ const workerConfig: WorkerConfig = {
   },
 }
 
+// You can define multiple maintenances here
+// During maintenance, an alert will be shown at status page
+// Also, related downtime notifications will be skipped (if any)
+// Of course, you can leave it empty if you don't need this feature
+// const maintenances: MaintenanceConfig[] = []
 const maintenances: MaintenanceConfig[] = [
   {
     // Monitor IDs to be affected by this maintenance