Update k8s101.md (#85)

Replacing the deprecated syntax of the "kubectl run my-nginx --image=nginx --replicas=2 --port=80 --record" command with new format "kubectl create deployment my-nginx --image=nginx --replicas=2 --port=80"

k8s101.md

@@ -13,7 +13,7 @@ Everyone says that Kubernetes (sometimes abbreviated as K8S) is hard, however go
 Let's start by creating an `nginx` service.
 
 ```bash
-$ kubectl run my-nginx --image=nginx --replicas=2 --port=80 --record
+$ kubectl create deployment my-nginx --image=nginx --replicas=2 --port=80
 $ kubectl expose deployment my-nginx --type=LoadBalancer --port=80
 ```