Did some code cleanup. Comments and headers mostly.

app/Repositories/Category/SingleCategoryRepository.php

@@ -235,4 +235,4 @@ class SingleCategoryRepository extends ComponentRepository implements SingleCate
     }
 
 
-}
+}

app/Repositories/Category/SingleCategoryRepositoryInterface.php

@@ -119,4 +119,4 @@ interface SingleCategoryRepositoryInterface
      * @return Category
      */
     public function update(Category $category, array $data);
-}
+}