ScrollView: rephrase onContentSizeChange description (facebook#3357)

Co-authored-by: Nicola Corti <[email protected]>

Author: Smartech-git

docs/scrollview.md

@@ -407,7 +407,7 @@ Enables nested scrolling for Android API level 21+.
 
 Called when scrollable content view of the ScrollView changes.
 
-Handler function is passed the content width and content height as parameters: `(contentWidth, contentHeight)`
+The handler function will recieve two parameters: the content width and content height `(contentWidth, contentHeight)`.
 
 It's implemented using onLayout handler attached to the content container which this ScrollView renders.