[O] Exporting markdown specific string

[Ista Zahn]

Hi all,

I'm trying to figure out how to export a line (say "foo") only when
exporting to markdown.

For latex there is
'#+LATEX: foo'
and for html there is
'#+HTML: foo'
but neither
'#+MD: foo'
nor
'#+MARKDOWN: foo'
does the trick.

Of course
'#+HTML: foo'
exports foo to markdown since the markdown exporter is derived from
the html exporter. But I'd really like to include stuff in the
markdown export that does not also get included in the html export.

Suggestions? I'm using org-plus-contrib: Org-mode version 8.2.4
(8.2.4-18-g4ee7e6-elpaplus) installed using M-x install-packages.

Thanks,
Ista