minor fixes

1-js/13-modules/01-modules-intro/article.md

@@ -188,7 +188,7 @@ That's exactly because the module is executed only once. Exports are generated,
 
 In other words, a module can provide a generic functionality that needs a setup. E.g. authentication needs credentials. Then it can export a configuration object expecting the outer code to assign to it.
 
-Here's a classical pattern:
+Here's the classical pattern:
 1. A module exports some means of configuration, e.g. a configuration object.
 2. On the first import we initialize it, write to its properties. The top-level application script may do that.
 3. Further imports use the module.