documentation add README.md symlink
documentation add README.md symlink

Point to DESCRIPTION.rst, which is the main
description file, but gihub looks for README.md
so let it have it.

Signed-off-by: Ilija Hadzic <47a09d4a4430975766160361f65fc72633be50b6@gmail.com>

ihadzic/jim,ihadzic/jim,ihadzic/jim