Fix typo: AppSerivce -> AppService

Author: changeworld

articles/ai-services/language-service/text-analytics-for-health/how-to/use-containers.md

@@ -128,7 +128,7 @@ Run this PowerShell script using the Azure CLI to create a Web App for Container
 ```azurecli
 $subscription_name = ""                    # THe name of the subscription you want you resource to be created on.
 $resource_group_name = ""                  # The name of the resource group you want the AppServicePlan
-                                           #    and AppSerivce to be attached to.
+                                           #    and AppService to be attached to.
 $resources_location = ""                   # This is the location you wish the AppServicePlan to be deployed to.
                                            #    You can use the "az account list-locations -o table" command to
                                            #    get the list of available locations and location code names.