MySQL database setup instructions in README

[g-simmons]

FYI setting up the database using the commands in the README threw an error about incorrect syntax near IDENTIFIED BY. As a result pyctd.update() asked for connection string.
SQL statements in the README:

CREATE DATABASE pyctd CHARACTER SET utf8 COLLATE utf8_general_ci;
GRANT ALL PRIVILEGES ON pyctd.* TO 'pyctd_user'@'%' IDENTIFIED BY 'pyctd_passwd';
FLUSH PRIVILEGES;

Some googling indicates creating users via GRANT is deprecated behavior.

After using

CREATE DATABASE pyctd CHARACTER SET utf8 COLLATE utf8_general_ci;
CREATE USER 'pyctd_user'@'%' IDENTIFIED BY 'pyctd_passwd';
GRANT ALL PRIVILEGES ON pyctd.* TO 'pyctd_user'@'%';
FLUSH PRIVILEGES;

pyctd.update() looks like it's working as expected.