Improved phrasing

Froussios · Froussios · commit b8d32fce9ae3 · 2015-04-25T23:40:28.000+02:00
diff --git a/Part 3 - Taming the sequence/7. Custom operators.md b/Part 3 - Taming the sequence/7. Custom operators.md
@@ -251,7 +251,7 @@ There are a few things to consider when doing manual pushes to subscribers
 
 ### serialize
 
-If you can't guarantee that your operator will obey the Rx contract, for example because pushes are asynchronous, you can use the `serialize` operator. The `serialize` operator will turn an unreliable observable into a lawful, sequential observable.
+If you can't guarantee that your operator will obey the Rx contract, for example because you push asynchronously, you can use the `serialize` operator. The `serialize` operator will turn an unreliable observable into a lawful, sequential observable.
 
 ![](https://raw.github.com/wiki/ReactiveX/RxJava/images/rx-operators/synchronize.png)
 
