Fix duplicate snippet tags

Author: BillWagner

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

@@ -1,7 +1,7 @@
 ---
 title: Build file-based apps
 description: File-based apps are command line utilities that are built and execute without a project file. The build and run commands are implicit. New syntax supports project settings in source.
-ms.date: 08/14/2025
+ms.date: 12/12/2025
 ms.topic: tutorial
 ai-usage: ai-assisted
 #customer intent: As a developer, I want to build utilities so that more work is automated.
@@ -254,7 +254,7 @@ Now, finish the app to use the parsed options and write the output. First, defin
 
 1. Create a local function to write the ASCII art with the specified delay. This function writes each message in the record with the specified delay between each message:
 
-   :::code language="csharp" source="./snippets/file-based-programs/AsciiArt.cs" id="WriteAscii":::
+   :::code language="csharp" source="./snippets/file-based-programs/AsciiArt.cs" id="WriteAsciiArt":::
 
 1. Replace the `if` clause you wrote earlier with the following code that processes the command line arguments and write the output:
 

docs/csharp/fundamentals/tutorials/snippets/file-based-programs/AsciiArt.cs

@@ -71,7 +71,8 @@ async Task<AsciiMessageOptions> ProcessParseResults(ParseResult result)
 }
 // </ProcessParsedArgs>
 
-// <WriteAscii>
+
+// <WriteAsciiArt>
 async Task WriteAsciiArt(AsciiMessageOptions options)
 {
     foreach (string message in options.Messages)
@@ -80,7 +81,7 @@ async Task WriteAsciiArt(AsciiMessageOptions options)
         await Task.Delay(options.Delay);
     }
 }
-// </WriteAscii>
+// </WriteAsciiArt>
 
 // <Record>
 public record AsciiMessageOptions(string[] Messages, int Delay);