This page is the landing page for the baseurl’s root index.html, which builds to either n.n/index.html or latest/index.html, but the should also have a root index.html.
Read the Cool Service User Guide.
Read the Cool Service Install Guide.
For each new release, build with a _config.n.n.yml file in addition to the _config.yml file which builds to a baseurl of repo-name/current.