Feature req: integrate documentation with udev-based 'daemon mode'

[giacecco]

I've read about making autorandr act as a "daemon" at https://github.com/wertarbyte/autorandr/issues/32#issuecomment-49590437 , but I don't know udev enough. Assuming the approach is reliable and worth investing into, would you mind integrating the documentation for autorandr with a description of how to do that? Thanks!