documentation salt-module

Signed-off-by: Robert Einsle <robby@mawoh.de>
Documenting the ssh module

Signed-off-by: Robert Einsle <robby@mawoh.de>
documentation of usersmodule

Signed-off-by: Robert Einsle <robby@mawoh.de>
Documentation of utul module

Signed-off-by: Robert Einsle <robby@mawoh.de>
documentation of virt module

Signed-off-by: Robert Einsle <robby@mawoh.de>