Update hub/powertoys/command-palette/creating-an-extension.md

Co-authored-by: Mike Griese <[email protected]>

Author: alvinashcraft

hub/powertoys/command-palette/creating-an-extension.md

@@ -30,7 +30,7 @@ The Command Palette extension system allows developers to create custom commands
   - WinUI application development workload
 - Windows 11 with PowerToys installed
 - Enable (Developer mode on Windows)[https://learn.microsoft.com/windows/apps/get-started/developer-mode-features-and-debugging]
-- - Basic knowledge of C# programming
+- Basic knowledge of C# programming
 
 Extensions are written in C#. The fastest way to get started writing extensions is from the Command Palette itself.