sshd.nix: Added nixops usage warning of openssh.authorizedKeys.keys usage

Changed files
+2
nixos
modules
services
networking
ssh
+2
nixos/modules/services/networking/ssh/sshd.nix
···
daemon reads in addition to the the user's authorized_keys file.
You can combine the <literal>keys</literal> and
<literal>keyFiles</literal> options.
+
Warning: If you are using <literal>NixOps</literal> then don't use this
+
option since it will replace the key required for deployment via ssh.
'';
};