fix type matching (ember-learn#387)

Author: abel-n

addon/routes/docs/api/item.js

@@ -18,7 +18,7 @@ export default Route.extend({
     } else {
       // Create a regex that will match modules by either the path, or the
       // pod-path (/component, /route, etc)
-      let type = path.match(/^(.*)s\//)[1];
+      let type = path.match(/^([\w-]*)s\//)[1];
       let pathRegex = new RegExp(`${path}(/${type})?$`);
 
       let modules = this.store.peekAll('module');