Fix typo

Powershell -> PowerShell

Author: changeworld

articles/virtual-wan/how-to-routing-policies.md

@@ -126,7 +126,7 @@ The following table provides example Virtual Network address space calculations.
 | Hub #2| 150 | 3 | 450| Request limit increase to use routing intent.|
 | Hub #3 |370 | 1| 370| Request limit increase.|
 
-You can use the following Powershell script to approximate the number of address spaces in Virtual Networks connected to a single Virtual WAN hub. Run this script for all Virtual WAN hubs in your Virtual WAN. An Azure Monitor metric to allow you to track and configure alerts on connected Virtual Network address spaces is on the roadmap. 
+You can use the following PowerShell script to approximate the number of address spaces in Virtual Networks connected to a single Virtual WAN hub. Run this script for all Virtual WAN hubs in your Virtual WAN. An Azure Monitor metric to allow you to track and configure alerts on connected Virtual Network address spaces is on the roadmap. 
 
 Make sure to modify the resource ID of the Virtual WAN Hub in the script to match your environment. If you have cross-tenant Virtual Network connections, make sure you have sufficient permissions to read the Virtual WAN Virtual Network connection object as well as the connected Virtual Network resource.