added links for dev/test and cores

Author: johnmarco

articles/azure-arc/servers/deliver-extended-security-updates.md

@@ -85,8 +85,8 @@ If any problems occur during the enablement process, see [Troubleshoot delivery
 
 There are some scenarios in which you may be eligible to receive Extended Security Updates patches at no additional cost. Two of these scenarios supported by Azure Arc include the following:
 
-- Dev/Test (Visual Studio)
-- Disaster Recovery (Entitled benefit DR instances from Software Assurance or subscription only)
+- [Dev/Test (Visual Studio)](/azure/devtest/offer/overview-what-is-devtest-offer-visual-studio)
+- Disaster Recovery ([Entitled benefit DR instances from Software Assurance](https://www.microsoft.com/en-us/licensing/licensing-programs/software-assurance-by-benefits) or subscription only)
 
 To qualify for these scenarios, you must have: