Metadata update: paid image note

101-vm-simple-rhel/metadata.json

@@ -1,7 +1,7 @@
 {
   "itemDisplayName": "Red Hat Enterprise Linux VM (RHEL 7.2 or RHEL 6.7)",
   "description": "This template will deploy a Red Hat Enterprise Linux VM (RHEL 7.2 or RHEL 6.7), using the latest image for the selected RHEL version on Standard D1 VM in the location of your chosen resource group with an additional 100 GiB data disk attached to the VM.",
-  "summary": "This template takes a minimum amount of parameters and deploys a Linux VM, using the latest available version.",
+  "summary": "This template will deploy RedHat (RHEL) VM, using the Pay-As-You-Go RHEL VM image. Additional charges apply.",
   "githubUsername": "BorisB2015",
   "dateUpdated": "2016-02-23"
 }