chore: refactor examples dir

[Ananya2001-an]

Describe the bug
We could refactor the examples folder to make it more readable and maintainable. Like creating a folder called kubectl/equivalents inside examples to give example for the corresponding kubectl command.

For example, creating NamespaceCreateEquivalent.js file which shows you the code equivalent to kubectl command: kubectl create namespace test

** Client Version **
e.g. 0.18.1

** Example Code**
PodsFilterByNamespace.js

const k8s = require('@kubernetes/client-node');

const kc = new k8s.KubeConfig();
kc.loadFromDefault();

const k8sApi = kc.makeApiClient(k8s.CoreV1Api);

/*
This sample javascript code is equivalent to `kubectl get pod --namespace=demo-namespace`
*/

const main = async () => {
    try {
        const podRes = await k8sApi.listNamespacedPod('demo-namespace');
        console.log('Pod: ', podRes.body.items[0].metadata);
     } catch (err) {
         console.error(err);
     }
};

main();

Additional context
I have already started working on this and would love to get assigned for the same.