Update resource-manager-web-app.md

MicrosoftDocs/azure-docs#95466

Author: MonikaReddy-MSFT

articles/azure-monitor/app/resource-manager-web-app.md

@@ -105,6 +105,9 @@ resource webApp 'Microsoft.Insights/components@2020-02-02' = {
     "alwaysOn": {
       "type": "bool"
     },
+    "currentStack": {
+      "type": "dotnetcore"
+    },
     "phpVersion": {
       "type": "string"
     },
@@ -297,6 +300,9 @@ resource webApp 'Microsoft.Insights/components@2020-02-02' = {
     },
     "alwaysOn": {
       "type": "bool"
+    },
+     "currentStack": {
+      "type": "dotnet"
     },
     "phpVersion": {
       "type": "string"
@@ -576,4 +582,4 @@ resource webApp 'Microsoft.Insights/components@2020-02-02' = {
 ## Next steps
 
 * [Get other sample templates for Azure Monitor](../resource-manager-samples.md).
-* [Learn more about classic Application Insights resources](../app/create-new-resource.md).
+* [Learn more about classic Application Insights resources](../app/create-new-resource.md).