Clarify customer intent and enhance file-based apps description (#50122)

* Clarify customer intent and enhance file-based apps description

Updated customer intent description for clarity and added a reference to directives.

* Apply suggestions from code review

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Bill Wagner <wiwagn@microsoft.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: 3 people

docs/csharp/fundamentals/tutorials/file-based-programs.md

@@ -4,13 +4,12 @@ description: File-based apps are command line utilities that are built and execu
 ms.date: 08/14/2025
 ms.topic: tutorial
 ai-usage: ai-assisted
-#customer intent: As a developer, I want build utilities so that more work is automated.
+#customer intent: As a developer, I want to build utilities so that more work is automated.
 ---
 
 # Tutorial: Build file-based C# programs
 
-*File-based apps* are programs contained within a single `*.cs` file that are built and run without a corresponding project (`*.csproj`) file. File-based apps are ideal for learning C# because they have less complexity: The entire program is stored in a single file. File-based apps are also useful for building command line utilities. On Unix platforms, file-based apps can be run using `#!` (shebang) directives.
-
+*File-based apps* are programs contained within a single `*.cs` file that are built and run without a corresponding project (`*.csproj`) file. File-based apps are ideal for learning C# because they have less complexity: The entire program is stored in a single file. File-based apps are also useful for building command line utilities. On Unix platforms, file-based apps can be run using `#!` (shebang) [directives](../../language-reference/preprocessor-directives.md).
 In this tutorial, you:
 
 > [!div class="checklist"]