This broke, removing it for now.

Something that probable belongs on ruby-grape.org.

Author: dblock

README.md

@@ -82,7 +82,6 @@
   - [Active Support Instrumentation](#active-support-instrumentation)
   - [Monitoring Products](#monitoring-products)
 - [Contributing to Grape](#contributing-to-grape)
-- [Hacking on Grape](#hacking-on-grape)
 - [License](#license)
 - [Copyright](#copyright)
 
@@ -2671,13 +2670,6 @@ features and discuss issues.
 
 See [CONTRIBUTING](CONTRIBUTING.md).
 
-## Hacking on Grape
-
-You can start hacking on Grape on
-[Nitrous.IO](https://www.nitrous.io/?utm_source=github.com&utm_campaign=grape&utm_medium=hackonnitrous) in a matter of seconds:
-
-[![Hack ruby-grape/grape on Nitrous.IO](https://d3o0mnbgv6k92a.cloudfront.net/assets/hack-l-v1-3cc067e71372f6045e1949af9d96095b.png)](https://www.nitrous.io/hack_button?source=embed&runtime=rails&repo=intridea%2Fgrape&file_to_open=README.md)
-
 ## License
 
 MIT License. See LICENSE for details.