Update overview.md

Author: mimckitt

articles/virtual-machines/overview.md

@@ -53,9 +53,8 @@ This table shows some of the ways you can get a list of available locations.
 ## Availability
 There are multiple options to manage the availability of your virtual machines in Azure. 
 - **[Availability Zones](../availability-zones/az-overview.md)** are physically separated zones within an Azure region. Availability zones guarantee you will have virtual machine Connectivity to at least one instance at least 99.99% of the time when you have two or more instances deployed across two or more Availability Zones in the same Azure region. 
-- **[Virtual machine scale sets](../virtual-machine-scale-sets/overview.md)** let you create and manage a group of load balanced virtual machines. The number of virtual machine instances can automatically increase or decrease in response to demand or a defined schedule. Scale sets provide high availability to your applications, and allow you to centrally manage, configure, and update many virtual machines. 
-virtual machines in a scale set can also be deployed into multiple availability zones, a single availability zone, or regionally. 
-- **[Proximity Placement Groups](co-location.md)** is a logical grouping construct used to make sure that Azure compute resources are physically located close to each other. Proximity placement groups are useful for workloads where low latency is a requirement.
+- **[Virtual machine scale sets](../virtual-machine-scale-sets/overview.md)** let you create and manage a group of load balanced virtual machines. The number of virtual machine instances can automatically increase or decrease in response to demand or a defined schedule. Scale sets provide high availability to your applications, and allow you to centrally manage, configure, and update many virtual machines. Virtual machines in a scale set can also be deployed into multiple availability zones, a single availability zone, or regionally.
+- **[Proximity Placement Groups](co-location.md)** are a grouping construct used to ensure Azure compute resources are physically located close to each other. Proximity placement groups are useful for workloads where low latency is a requirement.
 
 Fore more information see [Availability options for Azure virtual machines](availability.md) and [SLA for Azure virtual machines](https://azure.microsoft.com/support/legal/sla/virtual-machines/v1_9/).