Update intro description

Author: craigshoemaker

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

@@ -18,7 +18,7 @@ ms.reviewer: jehollan
 
 Azure Functions supports the dependency injection (DI) software design pattern, which is a technique to achieve [Inversion of Control (IoC)](https://docs.microsoft.com/dotnet/standard/modern-web-apps-azure-architecture/architectural-principles#dependency-inversion) between classes and their dependencies.
 
-- Dependency injection in Azure Functions works in a similar fashion to the .NET Core Dependency Injection features. Familiarity with the [.NET Core dependency injection](https://docs.microsoft.com/aspnet/core/fundamentals/dependency-injection)  before using dependency injection in Azure Functions is recommended, but the two aren't identical.
+- Dependency injection in Azure Functions is built on the .NET Core Dependency Injection features. Familiarity with the [.NET Core dependency injection](https://docs.microsoft.com/aspnet/core/fundamentals/dependency-injection) is recommended. There are differences, however, in how you override dependencies and how configuration values are read with Azure Functions on the consumption plan.
 
 - Support for dependency injection begins with Azure Functions 2.x.