updated readme file

Author: mingcheng

Diff for: README.md

@@ -24,9 +24,12 @@ require 'lib/Readability.inc.php';
 $Readability     = new Readability($html, $html_input_charset); // default charset is utf-8
 $ReadabilityData = $Readability->getContent(); // throws an exception when no suitable content is found
 
+// You can see more params by var_dump($ReadabilityData);
 echo "<h1>".$ReadabilityData['title']."</h1>";
 echo $ReadabilityData['content'];
 ```
 
+
+
 PS: For Node.js port, You can [[https://github.com/arrix/node-readability/|check this]].