Correct typo within CONTRIBUTING

* Remove whitespace within README
[ci skip]

Author: duggiefresh

CONTRIBUTING.md

@@ -16,7 +16,7 @@ If you'd like to submit a pull request please adhere to the following:
 4. Single-quotes instead of double-quotes unless you are using string
    interpolation or escapes.
 
-Plase note that you must adhere to each of the above mentioned rules.
+Please note that you must adhere to each of the aforementioned rules.
 Failure to do so will result in an immediate closing of the pull
 request. If you update and rebase the pull request to follow the
 guidelines your pull request will be re-opened and considered for

README.md

@@ -35,7 +35,7 @@ var App.UserController = Ember.ObjectController.extend(Ember.Validations.Mixin);
 ```
 
 You define your validations as a JSON object. They should be added to
-the controller that represents the model in question. 
+the controller that represents the model in question.
 The keys in the object should map to properties. If you pass a
 JSON object as the value this will be seen as validation rules to apply
 to the property. If you pass `true` then the property itself will be