Add documentation

Signed-off-by: Jan Losinski <losinski@wh2.tu-dresden.de>
Add worker commandline option

Signed-off-by: Jan Losinski <losinski@wh2.tu-dresden.de>
Test worker commandline option

Signed-off-by: Jan Losinski <losinski@wh2.tu-dresden.de>
Add worker option to the readme

Signed-off-by: Jan Losinski <losinski@wh2.tu-dresden.de>