Nice idea, but I'm not sure about the weighting in favour of PRs. A project that gets lots of issues but proportionally few PRs gets a pass. See material-ui for

Nice idea, but I'm not sure about the weighting in favour of PRs. A project that gets lots of issues but proportionally few PRs gets a pass. See material-ui for example. Also, badge for the README.md might help spread awareness of your site.