Update using-delegates.md (#36455)

Fixes #36454

Author: IEvangelist

docs/csharp/programming-guide/delegates/using-delegates.md

@@ -1,14 +1,14 @@
 ---
 title: "Using Delegates - C# Programming Guide"
 description: Learn how to use delegates. Delegates are an object-oriented, type safe, and secure type that safely encapsulates a method.
-ms.date: 07/20/2015
+ms.date: 07/31/2023
 helpviewer_keywords:
   - "delegates [C#], how to use"
 ms.assetid: 99a2fc27-a32e-4a34-921c-e65497520eec
 ---
 # Using Delegates (C# Programming Guide)
 
-A [delegate](../../language-reference/builtin-types/reference-types.md) is a type that safely encapsulates a method, similar to a function pointer in C and C++. Unlike C function pointers, delegates are object-oriented, type safe, and secure. The type of a delegate is defined by the name of the delegate. The following example declares a delegate named `Del` that can encapsulate a method that takes a [string](../../language-reference/builtin-types/reference-types.md) as an argument and returns [void](../../language-reference/builtin-types/void.md):
+A [delegate](../../language-reference/builtin-types/reference-types.md) is a type that safely encapsulates a method, similar to a function pointer in C and C++. Unlike C function pointers, delegates are object-oriented, type safe, and secure. The type of a delegate is defined by the name of the delegate. The following example declares a delegate named `Callback` that can encapsulate a method that takes a [string](../../language-reference/builtin-types/reference-types.md) as an argument and returns [void](../../language-reference/builtin-types/void.md):
 
 [!code-csharp[csProgGuideDelegates#21](~/samples/snippets/csharp/VS_Snippets_VBCSharp/csProgGuideDelegates/CS/Delegates.cs#21)]