Add Loop Break To Doc Code

[ElectricGrizzly]

Issue in collision count loop.

If multiple collisions occur with mob over one move_and_slide(), score is incremented multiple times. Only tested in GDScript, but likely the same issue in C# too.

Found in Godot 4.0.2

[AThousandShips]

There's another PR that does this more completely:

• Fix duplicate mob squash logic in 3D tutorial (Your first 3D game)  #7767

[AThousandShips]

Thank you for your contribution nonetheless!