The `!-` name doesn't work as a title for the conversion from ReST to
Markdown. Maybe that's a bug in Pandoc, but more likely it's a legit
syntax gotcha in Mearkdown itself.
!-
^^^^
In ReST turns into:
!-\^\^\^\^
In the Markdown. :(
It should be:
# !-
Instead.
I hate filenames, Git hates Bullet • symbol, SNAFU.
I have no idea how to properly escape gnarly filenames. I don't want to
restrict Joy function names (any non-space, non-[] Unicode) so I just
did the quick and dirty thing to make filenames.