doc: add docs for module.paths

- Refs: nodejs#14371 (comment)

Author: atever

doc/api/modules.md

@@ -791,4 +791,14 @@ be explicitly exported in order to be used.
 [`path.dirname()`]: path.html#path_path_dirname_path
 [exports shortcut]: #modules_exports_shortcut
 [module resolution]: #modules_all_together
-[native addons]: addons.html
+[native addons]: addons.html
+
+### module.paths
+<!-- YAML
+added: v0.4.0
+-->
+
+* {array}
+
+The search paths for the module. 
+