Added sourcerer.io hall of fame contributor badges
Added sourcerer.io hall of fame contributor badges

Sourcerer.io has contributor badges that update regularly:

> Hall-of-fame is a widget that helps you show some love to your contributors.
>
> It automatically features new/trending/top contributors to your repo and updates hourly. To add it to your README add your repo here, and click Get Code.
>
> For source code, go to https://github.com/sourcerer-io/hall-of-fame
grabear/awesome-rshiny