(Azure CXP) updated a sentence about ASEs applications

changed "ASEs are isolated to running only a single customer's applications and are always deployed into a virtual network." to this sentence for clarity "ASEs host applications from only one customer and do so in one of their VNets."
https://github.com/MicrosoftDocs/azure-docs/issues/52409

Author: Grace-MacJones-MSFT

articles/app-service/environment/intro.md

@@ -30,7 +30,7 @@ App Service environments (ASEs) are appropriate for application workloads that r
 
 Customers can create multiple ASEs within a single Azure region or across multiple Azure regions. This flexibility makes ASEs ideal for horizontally scaling stateless application tiers in support of high RPS workloads.
 
-ASEs are isolated to running only a single customer's applications and are always deployed into a virtual network. Customers have fine-grained control over inbound and outbound application network traffic. Applications can establish high-speed secure connections over VPNs to on-premises corporate resources.
+ASEs host applications from only one customer and do so in one of their VNets. Customers have fine-grained control over inbound and outbound application network traffic. Applications can establish high-speed secure connections over VPNs to on-premises corporate resources.
 
 * ASE comes with its own pricing tier, learn how the [Isolated offering](https://channel9.msdn.com/Shows/Azure-Friday/Security-and-Horsepower-with-App-Service-The-New-Isolated-Offering?term=app%20service%20environment) helps drive hyper-scale and security.
 * [App Service Environments v2](https://channel9.msdn.com/Blogs/Azure/Azure-Application-Service-Environments-v2-Private-PaaS-Environments-in-the-Cloud?term=app%20service%20environment) provide a surrounding to safeguard your apps in a subnet of your network and provides your own private deployment of Azure App Service.