Whoops, looks like we moved a graphic element it was expecting. That's been restored and that should go out in the next update. A few things have been building up since the last update, so that might go out by the end of the month.
In the meantime, the only thing in the help documentation is the keymap for controls, which are the Renpy Defaults. You can see those here: https://defkey.com/renpy-shortcuts