Update snippets/csharp/System.Collections.Generic/DictionaryTKey,TValue/System.Collections.IDictionary.Remove/source.cs

Author: gewarren

snippets/csharp/System.Collections.Generic/DictionaryTKey,TValue/System.Collections.IDictionary.Remove/source.cs

@@ -22,7 +22,7 @@ public static void Main()
 
         // Use the Remove method to remove a key/value pair. No
         // exception is thrown if the wrong data type is supplied.
-        Console.WriteLine($"""{\n}Remove("dib")""");
+        Console.WriteLine($"""{"\n"}Remove("dib")""");
         openWith.Remove("dib");
 
         if (!openWith.Contains("dib"))