Missing Documentation Pages

[hownowstephen]

Is there a documentation page that you would like to see?

Add the title of the page below in a comment. Also, please preference it with one of the following four categories:

1. Tutorial - Step-by-step guide to get started
2. How To - Recipe to solve a specific problem
3. Explanation - Theory and history around ApprovalTests
4. Reference - Description, lists, and statistics of ApprovalTests api

Note: We are following Daniele Procida's theory of documentation