[GRASS-dev] psdriver docs drafted

[Markus Neteler]

... at display/drivers/PS/description.html
Please update. I have collected stuff from various
places.

I still wonder how to define the resolution (DPI).
Example: for the GRASS book I would like to generate
screenshots and such as PDFs at reasonable resolution.
d.out.file gives me resolution control as multiplier
to the GRASS monitor size. Are there other tricks?

Markus