Added more information

Author: gary houbre

console.rst

@@ -47,6 +47,9 @@ want a command to create a user::
         {
             // ... put here the code to run in your command
 
+            // this method must return an integer number with the "exit status code"
+            // of the command.
+
             // return this if there was no problem running the command
             return 0;