doc: improve the documentation of the stdio option

Fixes: #47705

doc/api/cluster.md

@@ -935,7 +935,8 @@ changes:
     **Default:** `false`.
   * `stdio` {Array} Configures the stdio of forked processes. Because the
     cluster module relies on IPC to function, this configuration must contain an
-    `'ipc'` entry. When this option is provided, it overrides `silent`.
+    `'ipc'` entry. When this option is provided, it overrides `silent`. See
+    [`child_process.spawn()`][]'s [`stdio`][].
   * `uid` {number} Sets the user identity of the process. (See setuid(2).)
   * `gid` {number} Sets the group identity of the process. (See setgid(2).)
   * `inspectPort` {number|Function} Sets inspector port of worker.
@@ -1092,6 +1093,7 @@ for (const worker of Object.values(cluster.workers)) {
 [`.setupPrimary()`]: #clustersetupprimarysettings
 [`ChildProcess.send()`]: child_process.md#subprocesssendmessage-sendhandle-options-callback
 [`child_process.fork()`]: child_process.md#child_processforkmodulepath-args-options
+[`child_process.spawn()`]: child_process.md#child_processspawncommand-args-options
 [`child_process` event: `'exit'`]: child_process.md#event-exit
 [`child_process` event: `'message'`]: child_process.md#event-message
 [`cluster.isPrimary`]: #clusterisprimary
@@ -1100,5 +1102,6 @@ for (const worker of Object.values(cluster.workers)) {
 [`kill()`]: process.md#processkillpid-signal
 [`process` event: `'message'`]: process.md#event-message
 [`server.close()`]: net.md#event-close
+[`stdio`]: child_process.md#optionsstdio
 [`worker.exitedAfterDisconnect`]: #workerexitedafterdisconnect
 [`worker_threads`]: worker_threads.md