Update plugin credits

Author: scottleechua

action.php

@@ -10,6 +10,12 @@
 
  *
 
+ * Original: from Plugin footer, author Juergen <[email protected]>
+
+ * Modified by Scott Lee Chua [email protected]
+
+ * 
+
  * Original: from Plugin headerfooter, author Li Zheng <[email protected]>
 
  * Modified by Juergen [email protected]
@@ -45,9 +51,8 @@ public function handle_parser_wikitext_preprocess(Doku_Event &$event, $param) {
 
        global $conf;
 
-       //what does this mean???
-
-       if ($INFO['id'] != '') return; // Jede Seite wird zweimal ausgeführt. Wenn die ID leer ist, ist es der echte Text, andernfalls ist es das Menü.
+       // Check if $INFO is set and has an 'id' key before accessing it
+       if (isset($INFO) && isset($INFO['id']) && $INFO['id'] != '') return;
 
 
        //helper array needed for parsePageTemplate

syntax.php

@@ -1,7 +1,7 @@
 <?php
 /**
  * @license    GPL (http://www.gnu.org/licenses/gpl.html)
- * @author     Hans-Juergen Schuemmer
+ * @author     Hans-Juergen Schuemmer, Scott Lee Chua
  *
  */