Minor demo updates

dotnet-sample/iac/main.bicep

@@ -3,7 +3,7 @@ param sku string = 'S1' // The SKU of App Service Plan
 param location string = resourceGroup().location // Location for all resources
 param linuxFxVersion string = 'DOTNETCORE|6.0' // The runtime stack of web app
 
-var appServicePlanName = toLower('AppServicePlan-FeatureFlags')
+var appServicePlanName = toLower('AppServicePlan-gh-demo')
 var webSiteName = toLower('wapp-${webAppName}')