doc: fixed io.js references in process.markdown

doc: fixed io.js references in process.markdown · nodejs/node@55ac24f

Original file line number	Diff line number	Diff line change
@@ -924,7 +924,7 @@ parent process using `process.send()`. Each will be received as a
`924`	`924`	`['message'](child_process.html#child_process_event_message)`
`925`	`925`	event on the parent's `ChildProcess` object.
`926`	`926`
`927`		-If io.js was not spawned with an IPC channel, `process.send()` will be undefined.
	`927`	+If Node.js was not spawned with an IPC channel, `process.send()` will be undefined.
`928`	`928`
`929`	`929`
`930`	`930`	`## process.disconnect()`
`@@ -935,7 +935,7 @@ gracefully once there are no other connections keeping it alive.`
`935`	`935`	`Identical to the parent process's`
`936`	`936`	`[ChildProcess.disconnect()](child_process.html#child_process_child_disconnect).`
`937`	`937`
`938`		-If io.js was not spawned with an IPC channel, `process.disconnect()` will be
	`938`	+If Node.js was not spawned with an IPC channel, `process.disconnect()` will be
`939`	`939`	`undefined.`
`940`	`940`
`941`	`941`