Fix #30982 example output

Author: ikke-t

modules/nodes-nodes-garbage-collection-configuring.adoc

@@ -44,15 +44,11 @@ $ oc describe machineconfigpool worker
 .Example output
 [source,yaml]
 ----
-apiVersion: machineconfiguration.openshift.io/v1
-kind: MachineConfigPool
-metadata:
-  creationTimestamp: 2019-02-08T14:52:39Z
-  generation: 1
-  labels:
-    custom-kubelet: small-pods <1>
+Name:         worker
+Namespace:
+Labels:       custom-kubelet=small-pods <1>
 ----
-<1> If a label has been added it appears under `labels`.
+<1> If a label has been added it appears under `Labels`.
 
 .. If the label is not present, add a key/value pair:
 +