multi line annotations

[mtoy-googly-moogly]

Proposal is something like

#XXXYYY
multilinetex
XXX

where XXX is something like | or * and YYY is the annotation/type/route thing

#|
plot { ...
}

#*(docs)
...
*

[tanclary]

I would be interested in seeing what this sort of implementation looks like when you get around to it.