Add note about Redux Saga

Author: lostintangent

README.md

@@ -383,7 +383,9 @@ AppState.addEventListener("change", (newState) => {
     newState === "active" && codePush.sync();
 });
 ```
-   
+
+*NOTE: If you are using [Redux](http://redux.js.org) and [Redux Saga](http://yelouafi.github.io/redux-saga/), you can alternatively use the [react-native-code-push-saga](http://github.com/lostintangent/react-native-code-push-saga) module, which allows you to customize when `sync` is called in simpler/more idiomatic way.*
+
 Additionally, if you would like to display an update confirmation dialog (an "active install"), configure when an available update is installed (e.g. force an immediate restart) or customize the update experience in any way, refer to the `sync` method's [API reference](#codepushsync) for information on how to tweak this default behavior.
 
 <a id="apple-note">*NOTE: While [Apple's developer agreement](https://developer.apple.com/programs/ios/information/iOS_Program_Information_4_3_15.pdf) fully allows performing over-the-air updates of JavaScript and assets (which is what enables CodePush!), it is against their policy for an app to display an update prompt. Because of this, we recommend that App Store-distributed apps don't enable the `updateDialog` option when calling `sync`, whereas Google Play and internally distributed apps (e.g. Enterprise, Fabric, HockeyApp) can choose to enable/customize it.*</a>