$base_url = 'http://www.bratgrrl.com'; // NO trailing slash!
So all you have to do is find the $base_url = line and enter your own base URL, so that visitors see your pretty Drupal site at www.example.com instead of www.example.com/drupal. Then change the file permissions back to read-only, 0444. Do not forget to do this! See to learn more.
Now you are well on your way to building a wonderful site with Drupal. The motherlode of all Drupal information is , so always visit here first for documentation and help.