Update README.md

Fix list all pods example code for current client version

Author: BassT

README.md

@@ -29,8 +29,8 @@ kc.loadFromDefault();
 
 const k8sApi = kc.makeApiClient(k8s.CoreV1Api);
 
-k8sApi.listNamespacedPod('default').then((res) => {
-    console.log(res.body);
+k8sApi.listNamespacedPod({ namespace: 'default' }).then((res) => {
+    console.log(res);
 });
 ```