doc: modify net.Server.listen arg list

PR-URL: #20142
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>

Author: musgravejw

doc/api/net.md

@@ -192,7 +192,7 @@ Possible signatures:
 * [`server.listen(options[, callback])`][`server.listen(options)`]
 * [`server.listen(path[, backlog][, callback])`][`server.listen(path)`]
   for [IPC][] servers
-* [`server.listen([port][, host][, backlog][, callback])`][`server.listen(port, host)`]
+* [`server.listen([[[port[, hostname[, backlog]]][, callback])`][`server.listen(port, host)`]
   for TCP servers
 
 This function is asynchronous. When the server starts listening, the
@@ -264,7 +264,7 @@ added: v0.11.14
 * Returns: {net.Server}
 
 If `port` is specified, it behaves the same as
-[`server.listen([port][, hostname][, backlog][, callback])`][`server.listen(port, host)`].
+[`server.listen([[[port[, hostname[, backlog]]][, callback])`][`server.listen(port, host)`].
 Otherwise, if `path` is specified, it behaves the same as
 [`server.listen(path[, backlog][, callback])`][`server.listen(path)`].
 If none of them is specified, an error will be thrown.