change clownflare owned icanhazip.com to myip.wtf

doc/src/dev/contrib/tor.md

@@ -13,7 +13,7 @@ import socket
 socks.set_default_proxy(socks.SOCKS5, "127.0.0.1", 9050)
 socket.socket = socks.socksocket
 import requests
-response = requests.get("https://icanhazip.com")
+response = requests.get("https://myip.wtf/text")
 print(response.content)
 ```