update command used to create deployment (#19005)

The previous one was showing a deprecation warning when used.

content/en/docs/tutorials/services/source-ip.md

@@ -34,7 +34,7 @@ document. The examples use a small nginx webserver that echoes back the source
 IP of requests it receives through an HTTP header. You can create it as follows:
 
 ```console
-kubectl run source-ip-app --image=k8s.gcr.io/echoserver:1.4
+kubectl create deployment source-ip-app --image=k8s.gcr.io/echoserver:1.4
 ```
 The output is:
 ```