README.md in airborne-0.1.10 vs README.md in airborne-0.1.11

@@ -141,10 +141,10 @@
 
 If you have an existing Rack application like `sinatra` or `grape` you can run Airborne against your application and test without actually having a server running. To do that, just specify your rack application in your Airborne configuration:
 
 ```ruby
 Airborne.configure do |config|
-    config.rack_app = MySinatraApp
+  config.rack_app = MySinatraApp
 end
 ```
 
 Under the covers, Airborne uses [rack-test](https://github.com/brynary/rack-test) to make the requests.