Update Ubuntu Pro support details

Author: przlplx

support/azure/virtual-machines/linux/upgrade-canonical-ubuntu-18dot04-lts.md

@@ -24,7 +24,7 @@ There's no direct upgrade path from Ubuntu 18.04 LTS to Ubuntu 22.04 LTS. Howeve
 
 ## Upgrade to Ubuntu Pro - Extended Security Maintenance until 2028
 
-Ubuntu Pro is an enhanced offering that includes security updates for all Ubuntu packages. It provides Extended Security Maintenance (ESM) for infrastructure and applications and optional full-time (24 hours a day, seven days a week) telephone and ticket support. Ubuntu Pro 18.04 LTS will remain fully supported until April 2028. 
+Ubuntu Pro is an enhanced offering that includes security updates for all Ubuntu packages. It provides Extended Security Maintenance (ESM) for infrastructure and applications and optional full-time (24 hours a day, seven days a week) telephone and ticket support. Ubuntu Pro 18.04 LTS remains fully supported until April 2028. 
 
 You can deploy new VMs that run Ubuntu Pro from the [Azure Marketplace](https://azuremarketplace.microsoft.com/marketplace/apps/canonical.0001-com-ubuntu-pro-bionic?tab=Overview). You can upgrade your Ubuntu Server (version 16.04 or higher) VM to Ubuntu Pro through an [in-place upgrade](/azure/virtual-machines/workloads/canonical/ubuntu-pro-in-place-upgrade). Alternatively, you can directly purchase the system from [Canonical](https://ubuntu.com/pro).