[Doc-a-thon] Updating cloudinit-add-user

Removing the reference to sensible-editor, given that's not installed in all Linux distros and the sentence is already mentioning they can use the text editor of their preference. Removing also the centos7 and URN image from the sample entry for the vm create to make it Linux agnostic (they could use any image with Cloud-init), changing the last block code from bash to output

Author: divargas-msft

articles/virtual-machines/linux/cloudinit-add-user.md

@@ -5,7 +5,7 @@ author: mattmcinnes
 ms.service: virtual-machines
 ms.collection: linux
 ms.topic: how-to
-ms.date: 05/11/2021
+ms.date: 03/29/2022
 ms.author: mattmcinnes
 ms.subservice: cloud-init
 ---
@@ -18,7 +18,7 @@ This article shows you how to use [cloud-init](https://cloudinit.readthedocs.io)
 ## Add a user to a VM with cloud-init
 One of the first tasks on any new Linux VM is to add an additional user for yourself to avoid the use of *root*. SSH keys are best practice for security and usability. Keys are added to the *~/.ssh/authorized_keys* file with this cloud-init script.
 
-To add a user to a Linux VM, create a file in your current shell named *cloud_init_add_user.txt* and paste the following configuration. For this example, create the file in the Cloud Shell not on your local machine. You can use any editor you wish. Enter `sensible-editor cloud_init_add_user.txt` to create the file and see a list of available editors. Choose #1 to use the **nano** editor. Make sure that the whole cloud-init file is copied correctly, especially the first line.  You need to provide your own public key (such as the contents of *~/.ssh/id_rsa.pub*) for the value of `ssh-authorized-keys:` - it has been shortened here to simplify the example.
+To add a user to a Linux VM, create a file in your current shell named *cloud_init_add_user.txt* and paste the following configuration. For this example, create the file in the Cloud Shell not on your local machine. You can use any editor you wish. Make sure that the whole cloud-init file is copied correctly, especially the first line.  You need to provide your own public key (such as the contents of *~/.ssh/id_rsa.pub*) for the value of `ssh-authorized-keys:` - it has been shortened here to simplify the example.
 
 ```yaml
 #cloud-config
@@ -32,40 +32,42 @@ users:
       - ssh-rsa AAAAB3<snip>
 ```
 > [!NOTE] 
-> The #cloud-config file includes the `- default` parameter included. This will append the user, to the existing admin user created during provisioning. If you create a user without the `- default` parameter - the auto generated admin user created by the Azure platform would be overwritten. 
+> The #cloud-config file includes the `- default` parameter included. This will append the user, to the existing admin user created during provisioning. If you create a user without the `- default` parameter - the auto generated admin user created by the Azure platform would be overwritten.
 
 Before deploying this image, you need to create a resource group with the [az group create](/cli/azure/group) command. An Azure resource group is a logical container into which Azure resources are deployed and managed. The following example creates a resource group named *myResourceGroup* in the *eastus* location.
 
-```azurecli-interactive 
+```azurecli-interactive
 az group create --name myResourceGroup --location eastus
 ```
 
 Now, create a VM with [az vm create](/cli/azure/vm) and specify the cloud-init file with `--custom-data cloud_init_add_user.txt` as follows:
 
-```azurecli-interactive 
+```azurecli-interactive
 az vm create \
   --resource-group myResourceGroup \
-  --name centos74 \
-  --image OpenLogic:CentOS:7-CI:latest \
+  --name vmName \
+  --image imageCIURN \
   --custom-data cloud_init_add_user.txt \
   --generate-ssh-keys 
 ```
+> [!NOTE]
+> Replace **myResourceGroup**, **vmName**, and **imageCIURN** values accordingly. Make sure an image with Cloud-init is chosen.
 
-SSH to the public IP address of your VM shown in the output from the preceding command. Enter your own **publicIpAddress** as follows:
+SSH to the public IP address of your VM shown in the output from the preceding command. Enter your own **user** and **publicIpAddress** as follows:
 
 ```bash
-ssh <publicIpAddress>
+ssh <user>@<publicIpAddress>
 ```
 
 To confirm your user was added to the VM and the specified groups, view the contents of the */etc/group* file as follows:
 
 ```bash
-cat /etc/group
+sudo cat /etc/group
 ```
 
 The following example output shows the user from the *cloud_init_add_user.txt* file has been added to the VM and the appropriate group:
 
-```bash
+```output
 root:x:0:
 <snip />
 sudo:x:27:myadminuser
@@ -74,6 +76,7 @@ myadminuser:x:1000:
 ```
 
 ## Next steps
+
 For additional cloud-init examples of configuration changes, see the following:
 
 - [Add an additional Linux user to a VM](cloudinit-add-user.md)