Little correction to add in the online documentation

[ericorain]

Hi.

In the documentation I would suggest to replace:

###############################

import netdev

netdev_logger = netdev.logger
netdev_logger.setLevel(logging.INFO)
netdev_logger.addHandler(logging.StreamHandler())

#Your own code

###############################

With;

###############################

import netdev
import logging

netdev_logger = netdev.logger
netdev_logger.setLevel(logging.INFO)
netdev_logger.addHandler(logging.StreamHandler())

#Your own code

###############################

Since that code would fail for the 2 last instructions.