Update instancing.rst

correction macOS's shortcut

Author: RayFV

getting_started/step_by_step/instancing.rst

@@ -45,7 +45,7 @@ you to download the ball's sample project we prepared for you:
 `instancing_starter.zip <https://github.com/godotengine/godot-docs-project-starters/releases/download/latest-4.x/instancing_starter.zip>`_.
 
 Extract the archive on your computer. To import it, you need the Project Manager.
-The Project Manager is accessed by opening Godot, or if you already have Godot opened, click on *Project -> Quit to Project List* (:kbd:`Ctrl + Shift + Q`, :kbd:`Ctrl + Option + Cmd + B` on macOS)
+The Project Manager is accessed by opening Godot, or if you already have Godot opened, click on *Project -> Quit to Project List* (:kbd:`Ctrl + Shift + Q`, :kbd:`Ctrl + Option + Cmd + Q` on macOS)
 
 In the Project Manager, click the *Import* button to import the project.