Command short keys should be emboldened to indicate shortcut.

[RyanGreenup]

I settled on underlining because it was more readable:

I'll leave this open because we should probably add these underlined shortcuts to other submenus.

If anybody wants to make a PR, this involves:

1. underlining the help with \e[4m and \e[0m
2. adding shortcuts, so for example this:

       ;;
   publish) shift; ...

   would become this:

       ;;
   publish|p) shift; ...