I have a repository in GitHub and it has a site that is visible through github pages, but I want the search engines to only show the home page of the site. If it was a normal site I could add a robots.txt in the root folder, but github does not give me access to the root folder of the domain, only the repository folder. What do I do?
* You can not use meta tags because I also want Googlebot to not see other files that are in the repository that are not html files.