Clearer Config::__construct() documentation.

src/pocketmine/utils/Config.php

@@ -73,7 +73,7 @@ class Config{
 	/**
 	 * @param string $file     Path of the file to be loaded
 	 * @param int    $type     Config type to load, -1 by default (detect)
-	 * @param array  $default  Array with the default values, will be set if not existent
+	 * @param array  $default  Array with the default values that will be written to the file if it did not exist
 	 * @param null   &$correct Sets correct to true if everything has been loaded correctly
 	 */
 	public function __construct($file, $type = Config::DETECT, $default = [], &$correct = null){