Update 14-communicate-between-components.md (facebook#7680)

To demonstrate multiple arguments `bind(this, arg1, arg2, ...)`, also not to pass in for than what `handleClick` needed, namely props, or maybe even pass item itself, etc.
Going to change the kor file after review.

docs/tips/14-communicate-between-components.md

@@ -13,16 +13,16 @@ For child-parent communication:
 Say your `GroceryList` component has a list of items generated through an array. When a list item is clicked, you want to display its name:
 
 ```js
-var handleClick = function(i, props) {
-  console.log('You clicked: ' + props.items[i]);
+var handleClick = function(i, items) {
+  console.log('You clicked: ' + items[i]);
 }
 
 function GroceryList(props) {  
   return (
     <div>
       {props.items.map(function(item, i) {
         return (
-          <div onClick={handleClick.bind(this, i, props)} key={i}>{item}</div>
+          <div onClick={handleClick.bind(this, i, props.items)} key={i}>{item}</div>
         );
       })}
     </div>