Show example of constant to enable Smarty

dev/skeletons/modMyModule.class.php

@@ -95,6 +95,7 @@ class modMyModule extends DolibarrModules
 		// Constants
 		// Example: $this->const=array(0=>array('MYMODULE_MYNEWCONST1','chaine','myvalue','This is a constant to add',0),
 		//                             1=>array('MYMODULE_MYNEWCONST2','chaine','myvalue','This is another constant to add',0) );
+		//                             2=>array('MAIN_MODULE_MYMODULE_NEEDSMARTY','chaine',1,'Constant to say module need smarty',0)
 		$this->const = array();			// List of particular constants to add when module is enabled (key, 'chaine', value, desc, visible, 0 or 'allentities')
 
 		// Array to add new pages in new tabs