Consider using All Contributors.org to keep track of contributors

Way to keep track of who is doing what. https://allcontributors.org/docs/en/overview

It's a bot which keeps track of the nature of all contributions. Check out the emoji table, in particular: https://allcontributors.org/docs/en/emoji-key

Relevant to astropy/coordination#84

Read the All Contributors overview and emoji key, then review astropy/coordination#84. Determine where contributor records would live, which contribution categories to capture, and how the bot would fit the project's existing process; the issue is done when an agreed implementation plan or decision is recorded.

Written by the indexing model from the issue text.