How To Use These Files
xah-fly-keys.pdf is just a pdf file. But, xah-fly-keys.md is an anki file. Just downloand anki from its website. Install it, create a deck. Say: "xah-fly-keys" and import the md file into it. Anki will ask which type of delimiter the file uses. Just write "\t" without quotes, meaning TAB. Then, you can play and learn the keybinding in a funny way...
Cybertron aka OrionRandD and other nicks 2019-11-20
:)