well, obviously there are several ways to make it work so folks can at least know what the intended chords are. Since I almost never use Word, I had not educated myself in its various possibilities....but it and other good word processor programs can, I see, help a lot.
I think that John's refinement using the 'pre' format would probably be the clearest for general use and for doing something like printing out sheets for your notebook. I do prefer the G⁷ E^m way of showing the chords with superscripts....just makes 'em stand out.
GtD and others could always reformat it to suit.....