I finally got around to writing a script to auto-generate the documentation for my DefaultKeyBinding.dict file. The script now reads my comments in the file and creates tables of keystrokes and descriptions ready for GitHub. From now on, my fickle changes will be reflected in the readme.md file in the repo and the keystrokes will stay current. You can see the current output here.
This is a companion discussion topic for the original entry at https://brettterpstra.com/2011/12/21/a-little-keybinding-sanity