fix typo for README.md (#8) 
fix typo for README.md (#8) 


morningman/palo,morningman/palo,imay/palo,cyongli/palo,cyongli/palo,imay/palo,lingbin/palo,cyongli/palo,imay/palo,lingbin/palo,lingbin/palo,imay/palo,lingbin/palo,cyongli/palo,morningman/palo,imay/palo,lingbin/palo,cyongli/palo,morningman/palo,morningman/palo,imay/palo,lingbin/palo,cyongli/palo,morningman/palo