Fix: replace custom parameters with placeholders for succinctness

Author: mrajagopal

nginx-utils/README.md

@@ -11,17 +11,15 @@ Benefits:
 # Usage
 #### The command to start the debug container using the nginx-utils image version `ghcr.io/nginx/nginx-utils:v0.0.1-docker`:  
 ```
-ns=v4nic-0
-pod=$(kubectl get po -n $ns -o name | awk -F '/' '{print $2}')
-kubectl -n $ns debug -it $pod --image=ghcr.io/nginx/nginx-utils:latest --target=nginx-ingress
+kubectl -n <namespace> debug -it <nic-pod-name> --image=ghcr.io/nginx/nginx-utils:latest --target=nginx-ingress
 ```
 
 Please refer to the [nginx-utils packages page](https://github.com/nginx/nginx-supportpkg-for-k8s/pkgs/container/nginx-utils) for versions.  
 
 --------------
 #### Example usage of `api_stats.sh` found in the container:  
 ```
-kubectl -n $ns debug -it $pod --image=ghcr.io/nginx/nginx-utils:latest --target=nginx-ingress
+kubectl -n <namespace> debug -it <nic-pod-name> --image=ghcr.io/nginx/nginx-utils:latest --target=nginx-ingress
 
 v4nic-0-nginx-ingress-controller-854796ff97-hhkk5:~# ls
 api_stats.sh     memory_stats.sh