README.md in restpack_serializer-0.2.12 vs README.md in restpack_serializer-0.2.13

@@ -152,10 +152,10 @@
 
 ```ruby
 class AlbumSerializer
   include RestPack::Serializer
   attributes :id, :title, :year, :artist_id, :href
-  
+
   can_include :songs, :artists
 end
 ```
 
 In this example, we are allowing related `songs` and `artists` to be included in API responses. Side-loads can be specifed by using the `includes` parameter: