Add multipart: true to example

Author: sdturner02

examples/basic_example/index.html

@@ -55,6 +55,7 @@ <h3>Basic Example</h3>
         button: btn,
         url: 'file_upload.php',
         name: 'uploadfile',
+        multipart: true,
         hoverClass: 'hover',
         focusClass: 'focus',
         responseType: 'json',