Update virtual-machines-common-prepay-reserved-vm-instances.md

Author: itechedit

includes/virtual-machines-common-prepay-reserved-vm-instances.md

@@ -16,7 +16,7 @@ The Meter Sub-category and Product fields in the usage data doesn't distinguish
 - You can also get accurate VM size information using Powershell, Azure Resource Manager or from VM details in the Azure portal.
 
 ## Buy a Reserved Virtual Machine Instance
-1. Log in to the [Azure portal](https://portal.azure.com).
+1. Sign in to the [Azure portal](https://portal.azure.com).
 2. Select **All services** > **Reservations**.
 3. Select **Add** to purchase a new Reserved Instance.
 4. Fill in the required fields. Running VM instances that match the attributes you select qualify to get the Reserved Instance discount. The actual number of your VM instances that get the discount depend on the scope and quantity selected.