nickserv: Point towards /HELP REG since not implemented yet

irc/nickserv.go

@@ -20,5 +20,5 @@ func (server *Server) nickservReceiveNotice(client *Client, message string) {
 }
 
 func (server *Server) nickservReceivePrivmsg(client *Client, message string) {
-	client.Notice("NickServ is not yet implemented, sorry!")
+	client.Notice("NickServ is not yet implemented, sorry! To register an account, check /HELP REG")
 }