Remove or update Contributors file

I see you have a Contributors list, but no instructions on how contributors should add their name to it (and looks like not all have done so). I’d suggest either removing that file completely, or adding in instructions into your contributing guide for how and when contributors should add their name. Thanks!

Review the Contributors file and the contributing guide to compare the current contributor-listing practice with the documented process. Done means either the obsolete file is removed or the guide clearly explains how and when contributors should add their names.

Written by the indexing model from the issue text.