change ubuntu ip code example

Example 1: check ip json

$ curl 'https://api.ipify.org?format=json'
{"ip":"51.159.59.56"}

Example 2: get ip python

import socket    
host = socket.getfqdn()    
addr = socket.gethostbyname(host)
print(f"Your ip is {addr}")
# On Linux, it may give you the localhost address