docs(redis): migrate endpoint update (#2008)

Author: scaleway-bot

api/redis/v1/redis_sdk.go

@@ -1101,7 +1101,7 @@ func (s *API) ListClusters(req *ListClustersRequest, opts ...scw.RequestOption)
 	return &resp, nil
 }
 
-// MigrateCluster: Upgrade your standalone Redis™ Database Instance node, either by upgrading to a bigger node type (vertical scaling) or by adding more nodes to your Database Instance to increase your number of endpoints and distribute cache (horizontal scaling). Note that scaling horizontally your Redis™ Database Instance will not renew its TLS certificate. In order to refresh the TLS certificate, you must use the Renew TLS certificate endpoint.
+// MigrateCluster: Upgrade your Redis™ Database Instance, either by upgrading to a bigger node type (vertical scaling) or by adding more nodes to your Database Instance to increase your number of endpoints and distribute cache (horizontal scaling, available for clusters only). Note that scaling horizontally your Redis™ Database Instance will not renew its TLS certificate. In order to refresh the TLS certificate, you must use the Renew TLS certificate endpoint.
 func (s *API) MigrateCluster(req *MigrateClusterRequest, opts ...scw.RequestOption) (*Cluster, error) {
 	var err error