Wrong template name

There is a sentence in the README.TXT of this modul:

2) Copy the corner.tpl.php file to your theme and edit the output.

This does not work, because the module otherwise called the template:

function corner_theme() {
  return array(
    'corner_corner' => array(
      'template' => 'corner',
      'arguments' => array('html' => NULL, 'corner' => NULL),

So, in this case, Drupal never call the corner.tpl.php in the theme's directory, but always call the corner_corner.tpl.php, if that is exists in the theme's directory. Rename the 'corner_corner' template to simple 'corner' (preferred), or modify the documentation, please.