MartyPC 0.2.0 fails to load keyboard mappings

[dbalsom]

A configuration line telling MartyPC where to find keyboard layouts was omitted from the release.

If you wish to use an international keyboard layout, please add this line to paths array under the emulator section of martypc.toml:

{ resource = "keyboard_layout", path = "$basedir$/configs/keyboard_layouts", recurse = false },