Revert "Remove commas from kubelet configuration example"

Author: divya-mohan0209

content/en/docs/tasks/administer-cluster/kubelet-config-file.md

@@ -28,22 +28,13 @@ in this struct. Make sure the Kubelet has read permissions on the file.
 
 Here is an example of what this file might look like:
 ```
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: kubelet-config-1.20
-  namespace: kube-system
-data:
-  kubelet: |
-    apiVersion: kubelet.config.k8s.io/v1beta1
-    kind: KubeletConfiguration
-    address: "192.168.0.8"
-    port: 20250
-    serializeImagePulls: false
-    evictionHard:
-      memory.available:  "200Mi"
-~                                  
-
+apiVersion: kubelet.config.k8s.io/v1beta1
+kind: KubeletConfiguration
+address: "192.168.0.8",
+port: 20250,
+serializeImagePulls: false,
+evictionHard:
+    memory.available:  "200Mi"
 ```
 
 In the example, the Kubelet is configured to serve on IP address 192.168.0.8 and port 20250, pull images in parallel,