doc: simplify path.basename() on POSIX and Windows

PR-URL: #23864
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

doc/api/path.md

@@ -18,9 +18,7 @@ on which a Node.js application is running. Specifically, when running on a
 Windows operating system, the `path` module will assume that Windows-style
 paths are being used.
 
-For example, using the `path.basename()` function with the Windows file path
-`C:\temp\myfile.html`, will yield different results when running on POSIX than
-when run on Windows:
+So using `path.basename()` might yield different results on POSIX and Windows:
 
 On POSIX: