I made a quick visit to the website. Nice stuff! I really liked the simple design {no coockies, no ads,..}. I just have some few notes:
1) Who is the audience target? I mean for what reason should anybody use your site? Know that good projects may not have a GitHub activity at all.
2) There is no mention about the team behind the project.
3) How you aim to generate profit from this ranking website? Or maybe you will just keep it an informative sources just like preev.com. But preev use an API to run automatically while your service requires regular manual updates.