Outdated Protocol vesions

Currently the [p2p_networking.html#protocol-versions](https://developer.bitcoin.org/reference/p2p_networking.html#protocol-versions) page says the latest protocol version is `70015`. 
However in the [bitcoin repo](https://github.com/bitcoin/bitcoin/blob/89720b7a1b37af885f304350fa25f2479179ae3e/src/node/protocol_version.h#L12), we can see that the latest version is `70015` for quite some time 