docs: fix inline comments to use "filter" and "sort" more precisely

web/src/main/webapp/my-app/marketplace/controllers.js

@@ -248,10 +248,9 @@ define(['angular', 'jquery', 'require'], function(angular, $, require) {
         if (currentPage === 'details') {
           // Empty string indicates no categories, show all portlets
           $scope.categoryToShow = '';
-          // Default filter is to sort by category for
-          // marketplaceDetails back to marketplace
+          // Default to filter by category on return back to app dir browse
           $scope.selectedFilter = 'category';
-          // To sort by category, angular will use title to filter
+          // When filtering by category, sort by title
           $scope.sortParameter = 'title';
           // Show category selection div by default
           $scope.showCategories = true;