edit pass: linux-article-batch4

Author: paulth1

articles/virtual-machines/linux/redhat-create-upload-vhd.md

@@ -516,7 +516,8 @@ This section assumes that you've already obtained an ISO file from the Red Hat w
         EOF
         ```
 
-1. Don't create swap space on the operating system disk.
+1. Swap configuration:
+    1. Don't create swap space on the operating system disk.
 
        Previously, the Azure Linux agent was used to automatically configure swap space by using the local resource disk that's attached to the VM after the VM is provisioned on Azure. This action is now handled by `cloud-init`. You *must not* use the Linux agent to format the resource disk create the swap file. Modify the following parameters in `/etc/waagent.conf` appropriately: