a description of the zen markup language format can be found at:
>   http://snowy.arsc.alaska.edu/bowerbird/test-suite/zml11rules.txt

i didn't examine this old file closely to see if i would update any of it,
but i'm sure that the vast majority of what it includes is still current...

the aim is to make the format simple enough that a fourth-grader can
understand it and use it productively, so i'm interested in the feedback
that any fourth-graders out there might have...           :+)

-bowerbird