Improved phrasing

Froussios · Froussios · commit cbd3a610be07 · 2015-05-08T19:15:36.000+02:00
diff --git a/Part 4 - Concurrency/2. Testing Rx.md b/Part 4 - Concurrency/2. Testing Rx.md
@@ -151,7 +151,7 @@ Third
 
 ## Testing
 
-Rx operators involving asynchronous, schedule those actions using a scheduler. If you take a look on all the operators in [Observable](http://reactivex.io/RxJava/javadoc/rx/Observable.html), you will see that such operators have overloads that take a scheduler. This is the way that you can supplement their real-time default schedulers for your `TestScheduler`.
+Rx operators involving asynchronous actions, schedule those actions using a scheduler. If you take a look on all the operators in [Observable](http://reactivex.io/RxJava/javadoc/rx/Observable.html), you will see that such operators have overloads that take a scheduler. This is the way that you can supplement their real-time default schedulers for your `TestScheduler`.
 
 Here is an example where we will test the output of `Observable.interval` against what we expect it to emit.
 
