fix typo

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fix typo in comment
Closes https://github.com/facebook/react-native/pull/7027

Differential Revision: D3190693

Pulled By: dmmiller

fb-gh-sync-id: fe1eddaeb13deac6f93da7ec600c267df2599586
fbshipit-source-id: fe1eddaeb13deac6f93da7ec600c267df2599586

ReactAndroid/src/main/java/com/facebook/react/views/recyclerview/RecyclerViewBackedScrollView.java

@@ -26,7 +26,7 @@ import com.facebook.react.views.scroll.ScrollEventType;
  * will be rendered as a separate {@link RecyclerView} row.
  *
  * Currently supports only vertically positioned item. Views will not be automatically recycled but
- * they will be detache from native view hierarchy when scrolled offscreen.
+ * they will be detached from native view hierarchy when scrolled offscreen.
  *
  * It works by storing all child views in an array within adapter and binding appropriate views to
  * rows when requested.