There are reserved address blocks for documentation; https://tools.ietf.org/html/rfc5737 and https://tools.ietf.org/html/rfc3849. It'd be better to use them for documentation updates. - IPv4 address block for doc: 192.0.2.0/24, 198.51.100.0/24 and 203.0.113.0/24 - IPv6 address block for doc: 2001:db8::/32 (also see https://tools.ietf.org/html/rfc5952)
There are reserved address blocks for documentation; https://tools.ietf.org/html/rfc5737 and https://tools.ietf.org/html/rfc3849. It'd be better to use them for documentation updates.