Spun out of [a discussion in #59](https://github.com/mozillascience/software-citation-tools/issues/59#issuecomment-361548241). I'm posting this here as a launch-point for someone who can wield JavaScript. [GitHub's API can return a repository's `ReadMe` file](https://developer.github.com/v3/repos/contents/#get-the-readme) so: 💡 (naively, maybe) [a regular expression could be used](https://www.crossref.org/blog/dois-and-matching-regular-expressions/) on the `content`.