Fixed broken link to bitboxer.de blog post

Author: mikedillion

resources/index.md

@@ -12,4 +12,4 @@ comments: false
 * [RESTful APIs with Grape](http://www.slideshare.net/dblockdotorg/building-restful-apis-w-grape): NYC.rb presentation about Grape in 2011.
 * [From Zero to API Cache in 10 Minutes](http://www.confreaks.com/videos/986-goruco2012-from-zero-to-api-cache-w-grape-mongodb-in-10-minutes): a 10-minute talk at GoRuCo 2012 about API caching with Grape.
 * [OAuth2: Protect Grape API with Doorkeeper](http://blog.yorkxin.org/posts/2013/11/05/oauth2-tutorial-grape-api-doorkeeper-en): a tutorial for protecting a Grape API with OAuth 2 protocol using Doorkeeper and Ruby on Rails with a [working sample](https://github.com/chitsaou/oauth2-api-sample).
-* [Combine Swagger with Grape to Create an Interactive Documentation of Your API](http://bitboxer.de/2014/02/09/grape).
+* [API Heaven with Grape and Swagger](http://bitboxer.de/2014/02/09/rails-api/).