docs: Improve version documentation for NodePool

PiperOrigin-RevId: 506627554

google/container/v1beta1/cluster_service.proto

@@ -3456,7 +3456,9 @@ message NodePool {
   // [Output only] Server-defined URL for the resource.
   string self_link = 100;
 
-  // The version of the Kubernetes of this node.
+  // The version of Kubernetes running on this NodePool's nodes. If unspecified,
+  // it defaults as described
+  // [here](https://cloud.google.com/kubernetes-engine/versioning#specifying_node_version).
   string version = 101;
 
   // [Output only] The resource URLs of the [managed instance
@@ -3850,8 +3852,7 @@ message AutoprovisioningNodePoolDefaults {
   // information, read [how to specify min CPU
   // platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
   // This field is deprecated, min_cpu_platform should be specified using
-  // https://cloud.google.com/requested-min-cpu-platform label selector on the
-  // pod.
+  // `cloud.google.com/requested-min-cpu-platform` label selector on the pod.
   // To unset the min cpu platform field pass "automatic"
   // as field value.
   string min_cpu_platform = 5 [deprecated = true];