doc: fix typo in path.md

PR-URL: #34550
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Harshitha K P <harshitha014@gmail.com>
Reviewed-By: Zeyu Yang <himself65@outlook.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

doc/api/path.md

@@ -549,7 +549,7 @@ On Windows systems only, returns an equivalent [namespace-prefixed path][] for
 the given `path`. If `path` is not a string, `path` will be returned without
 modifications.
 
-This method is meaningful only on Windows system. On POSIX systems, the
+This method is meaningful only on Windows systems. On POSIX systems, the
 method is non-operational and always returns `path` without modifications.
 
 ## `path.win32`