The keyboard key component exists to show which key or combination of keys performs a given action.
The action itself should be further explained in accompanying content. It
All shortcuts should do their best to match what appears on the user’s keyboard.
The only punctuation you should need is the + to indicate a combination of keys will activate the shortcut.
For a sequence of keys where one must follow the other, write "then" in between. Stick to lowercase to match the non-letter keys.
If two different keys can execute the same action, or the shortcut itself may look different on the user’s keyboard, write "or" in between.