The test code a user would write should be able to add a note for the next interaction, which will appear in the markdown. It is a record-only thing as playback ignores it. This serves as a rudimentary comment system for HUMANS (though somebody's bound to try to put YAML in there at some point):
...
## Interaction 0: POST /a/b/c
## [Note] Mary:
Mary had a little lamb,
Its fleece was white as snow,
And every where that Mary went
The lamb was sure to go ;
### Request headers recorded for playback:
...