README.md in nutella_framework-0.4.11 vs README.md in nutella_framework-0.4.12

- old
+ new
@@ -36,7 +36,8 @@
 If you already have an application you want to tinker with (like [RoomQuake](https://github.com/ltg-uic/roomquake)) simply checkout the application to a local folder, `cd /to/my/local/folder` and start tinkering away. Not sure how? Check out the [man page for the nutella command line tool](https://github.com/nutella-framework/nutella_framework/wiki).
 
 If you want to create your own application, hold on tight, a tutorial is coming soon.
 
 
-# Contributing
-Check out our [contributing wiki page](https://github.com/nutella-framework/nutella_framework/wiki/Contributing)! Thanks!
+# Building (for contributors)
+Clone the repo, `bundle install` to take care of the dependencies and then `rake` to run all the tests. If you want to build and install the gem just `rake install`. If you want a list of available build tasks, simply type `rake -T`. 
+