Add warning

regarding reading values from settings files

Author: craigshoemaker

articles/azure-functions/functions-dotnet-dependency-injection.md

@@ -193,6 +193,9 @@ public class HttpTrigger
 
 Refer to [Options pattern in ASP.NET Core](https://docs.microsoft.com/aspnet/core/fundamentals/configuration/options) for more details regarding working with options.
 
+> [!WARNING]
+> Avoid attempting to read values from files like *local.settings.json* or *appsettings.{environment}.json* on the Consumption plan. Values read from these files related to trigger connections aren't available as the app scales because the hosting infrastructure has no access to the configuration information.
+
 ## Next steps
 
 For more information, see the following resources: