Update doc comment

Kubernetes-commit: c3288411592089e04e2eeb92a32af50a44ee0ce4

Author: sanposhiho

core/v1/generated.proto

@@ -3434,7 +3434,7 @@ type TopologySpreadConstraint struct {
 	// because computed skew will be 3(3 - 0) if new Pod is scheduled to any of the three zones,
 	// it will violate MaxSkew.
 	//
-	// This is an beta field and requires enabling MinDomainsInPodTopologySpread feature gate.
+	// This is a beta field and requires the MinDomainsInPodTopologySpread feature gate to be enabled (enabled by default).
 	// +optional
 	MinDomains *int32 `json:"minDomains,omitempty" protobuf:"varint,5,opt,name=minDomains"`
 	// NodeAffinityPolicy indicates how we will treat Pod's nodeAffinity/nodeSelector