Add mention of Workman-IO to the Mac readme.
|@@ -3,6 +3,8 @@ Workman keyboard layout for MacOS|
|Workman and Workman-P Mac OSX keyboard layout packaged as a keylayout bundle includes alternate icons, similar in style to the system icons for other layouts like Dvorak or Colemak.|
|+Workman-IO is the same as Workman, but with the I and O letters swapped. It was proposed by vjustin and has not been endorsed by OJ.|
|* Copy to a Keyboard Layouts directory:|