src/Commands/AboutCommandGroup.cs

@@ -101,7 +101,7 @@ public class AboutCommandGroup : CommandGroup
             builder.Append(tag).Append(' ');
         }
 
-        builder.AppendLine().AppendDoubleLine(Markdown.Bold(
+        builder.AppendDoubleLine().AppendLine(Markdown.Bold(
             Markdown.Hyperlink("TeamOctolings", "https://github.com/TeamOctolings")));
         foreach (var dev in TeamOctolings)
         {

src/Extensions/StringBuilderExtensions.cs

@@ -69,7 +69,7 @@ public static class StringBuilderExtensions
     /// <returns>
     ///     The builder with the appended string with two default line terminators at the end.
     /// </returns>
-    public static StringBuilder AppendDoubleLine(this StringBuilder builder, string? value)
+    public static StringBuilder AppendDoubleLine(this StringBuilder builder, string? value = null)
     {
         return builder.AppendLine().AppendLine(value);
     }