doc: expand fs.watch caveats

Document Windows specific fs.watch caveats.

Fixes: #31702

PR-URL: #32176
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Masashi Hirano <shisama07@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

doc/api/fs.md

@@ -3796,6 +3796,9 @@ The recursive option is only supported on macOS and Windows.
 An `ERR_FEATURE_UNAVAILABLE_ON_PLATFORM` exception will be thrown
 when the option is used on a platform that does not support it.
 
+On Windows, no events will be emitted if the watched directory is moved or
+renamed. An `EPERM` error is reported when the watched directory is deleted.
+
 #### Availability
 
 <!--type=misc-->