The GOOD documentation link isn't working properly: https://preview.keenthemes.com/html/good/docs/index.
It seems to be failing to load the JS and CSS assets. The following is seen in the network tab when loading the documentation:
Request URL:
https://preview.keenthemes.com/html/good/docs/assets/plugins/custom/prismjs/prismjs.bundle.js
Request Method:
GET
Status Code:
404 Not Found