Bugfix - Typos

Summary:
Fixed few typos in `./Examples` and `./Libraries` folders.
Closes https://github.com/facebook/react-native/pull/4788

Reviewed By: svcscm

Differential Revision: D2759918

Pulled By: androidtrunkagent

fb-gh-sync-id: d692b5c7f561822353e522f9d4dfde7e60b491cf

Libraries/Components/ScrollView/RecyclerViewBackedScrollView.android.js

@@ -20,9 +20,9 @@ var INNERVIEW = 'InnerView';
  * Wrapper around android native recycler view.
  *
  * It simply renders rows passed as children in a separate recycler view cells
- * similarily to how `ScrollView` is doing it. Thanks to the fact that it uses
+ * similarly to how `ScrollView` is doing it. Thanks to the fact that it uses
  * native `RecyclerView` though, rows that are out of sight are going to be
- * automatically detached (similarily on how this would work with
+ * automatically detached (similarly on how this would work with
  * `removeClippedSubviews = true` on a `ScrollView.js`).
  *
  * CAUTION: This is an experimental component and should only be used together

Libraries/Components/ScrollView/ScrollView.js

@@ -184,7 +184,7 @@ var ScrollView = React.createClass({
     minimumZoomScale: PropTypes.number,
     /**
      * Fires at most once per frame during scrolling. The frequency of the
-     * events can be contolled using the `scrollEventThrottle` prop.
+     * events can be controlled using the `scrollEventThrottle` prop.
      */
     onScroll: PropTypes.func,
     /**
@@ -438,7 +438,7 @@ var ScrollView = React.createClass({
 
     var onRefreshStart = this.props.onRefreshStart;
     // this is necessary because if we set it on props, even when empty,
-    // it'll trigger the default pull-to-refresh behaviour on native.
+    // it'll trigger the default pull-to-refresh behavior on native.
     props.onRefreshStart = onRefreshStart
       ? function() { onRefreshStart && onRefreshStart(this.endRefreshing); }.bind(this)
       : null;