move bracket delimiters paragraph up a bit

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@334408 c90b9560-bf6c-de11-be94-00142212c4b1
extra bracket delimiters examples

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@334409 c90b9560-bf6c-de11-be94-00142212c4b1