config.yml:

The central configuration file for the site

The file _config.yml is the main file that controls the process by which the Jekyll software generates a website from the source files.

The configuration for _config.yml is divided into three parts, each of which has it’s own set of documentation:

• _config.yml: common settings that are common to both course and offering level sites
• _config.yml: course settings for course level sites
• _config.yml: offering settings for offering level sites