Is this worth extracting as a variable in the config.yml file?

Is this worth extracting as a variable in the config.yml file?

Hmm, perhaps yes - it's good to keep track of important links. Looking into the config - seems it would be better to define the url relative to BASE_PATH.

Could you please extract site.repository in these places too:

https://github.com/dbfit/dbfit/blob/master/website/index.html#L13
https://github.com/dbfit/dbfit/blob/master/website/index.html#L18
https://github.com/dbfit/dbfit/blob/master/website/index.html#L20
https://github.com/dbfit/dbfit/blob/master/website/index.html#L21
https://github.com/dbfit/dbfit/blob/master/website/index.html#L47

Could you please extract site.repository in these places too

Done for all repo-related links on the site.