added the feature info in the debug message function and added also a demo-example

functions/functions.php

@@ -6,7 +6,7 @@ You don't need to specify the extension .php, the system will automatically add
 */
 $fun_to_inc = array(
     //"example",
-    "test"
+    "demo-example"
 );
 
 // DON'T CHANGE THE CODE BELOW!!!
@@ -16,6 +16,9 @@ if (isset($fun_to_inc) && is_array($fun_to_inc) && !empty($fun_to_inc)){
             require_once(FUNCTIONS_FOLD . $fun . ".php");
         } else {
             debugStatusMes("Function file $fun.php not found in functions folder: '" . FUNCTIONS_FOLD . "'", "Medium");
+            if ($fun === "demo-example") {
+                debugStatusMes("The 'demo-example' function is only a demo. If you create a new function, needs to be included in the file specified above. Please remove the demo-example record from 'functions/functions.php' ", "Info");
+            }
         }
     }
 }