one: indicate where passed data will be available

Closes jquery#855

Author: cmisenas

entries/one.xml

@@ -8,7 +8,7 @@
       <desc>A string containing one or more JavaScript event types, such as "click" or "submit," or custom event names.</desc>
     </argument>
     <argument name="data" type="PlainObject" optional="true">
-      <desc>An object containing data that will be passed to the event handler.</desc>
+      <desc>Data to be passed to the handler in <a href="/event.data/"><code>event.data</code></a> when an event is triggered.</desc>
     </argument>
     <argument name="handler" type="Function">
       <desc>A function to execute at the time the event is triggered.</desc>