[docs] Small typo error in the ip_address module introduction

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ipaddress.ip_interface('192.0.2.1/24') IPv4Interface('192.0.2.1/24') >>> ipaddress.ip_network('2001:db8::1/96') IPv6Interface('2001:db8::1/96')

Hi all, I found the following typo error inside the ip_address module introduction (http://docs.python.org/dev/howto/ipaddress.html). Inside the Host Interfaces section there is the following example: the second statement should call the ip_interface method instead of the ip_network one. Otherwise, this tutorial is very well written! Thanks! Regards, ... Pierre Rouleau