Add more details in style.css

[marcinkrzeminski]

How about extending the comment section in style.css to promote Chisel a little bit?

I'm thinking about something like this:

/*
 * Theme Name: PROJECT_NAME
 * Theme URI: https://www.getchisel.co/
 * Description: Custom theme based on Chisel
 * Author: Xfive
 * Author URI: https://xfive.co/
 * Version: 1.0
 * License: GNU General Public License v2 or later
 * License URI: http://www.gnu.org/licenses/gpl-2.0.html
 * Text Domain: project_name
*/