fix example

Author: ndyakov

example/pubsub/main.go

@@ -19,9 +19,9 @@ var ctx = context.Background()
 func main() {
 	wg := &sync.WaitGroup{}
 	rdb := redis.NewClient(&redis.Options{
-		Addr:            ":6379",
+		Addr: ":6379",
 		HitlessUpgradeConfig: &redis.HitlessUpgradeConfig{
-			Enabled: hitless.MaintNotificationsEnabled,
+			Mode: hitless.MaintNotificationsEnabled,
 		},
 	})
 	_ = rdb.FlushDB(ctx).Err()