mallsop

List site contributors allows you list your site’s contributors and authors. 
Just add the shortcode [listsitecontributors] to a page on your blog. 
Optionally you can use the User Photo Plugin (https://wordpress.org/extend/plugins/user-photo/) for images, 
otherwise Avatars will be used.

List Site Contributors

Pippin Williamson

This plugin provides a short code that you can use for showing a photo grid of all users that have contributed code to any Github repository.
It’s a great way to show off the people that have helped with your project.
You can see this live on the Contributors page for <a href="http://easydigitaldownloads.com/contributors/" rel="nofollow ugc">Easy Digital Downloads</a>.
Based on the code by <a href="http://kovshenin.com/2012/how-to-get-a-list-of-contributors-from-a-github-project/" rel="nofollow ugc">Konstantin Kovshenin</a>.

Github Contributors

Provides a simple short code for displaying a list of contributors from any Github repository.

List Site Contributors vs Github Contributors