The issue with displaying statistics to potential employers is that they can easily be gamed or even falsified. If your site really takes off, you'll have to be careful that it is not inundated with 'developers' whose contributions include renaming str_name to name_str in a thousand repositories.

Cf. https://blog.domenic.me/hacktoberfest/ and https://news.ycombinator.com/item?id=24643894