doc: fix typo in process.disconnect() docs

"that" should be "the" in this sentence. This commit also
restructures the sentence to avoid the word "process's"

PR-URL: https://github.com/nodejs/node/pull/28328
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

doc/api/process.md

@@ -763,8 +763,8 @@ and [Cluster][] documentation), the `process.disconnect()` method will close the
 IPC channel to the parent process, allowing the child process to exit gracefully
 once there are no other connections keeping it alive.
 
-The effect of calling `process.disconnect()` is that same as calling the parent
-process's [`ChildProcess.disconnect()`][].
+The effect of calling `process.disconnect()` is the same as calling
+[`ChildProcess.disconnect()`][] from the parent process.
 
 If the Node.js process was not spawned with an IPC channel,
 `process.disconnect()` will be `undefined`.