What is suitable documentation for "your" project?

As a group, consider the project that you worked on for your homework assignment.

Type(s) of documentation

Which type of of documentation currently exists? Is there anything missing/do you think anything is a bit over the top?

It is not necessary to dive too deep into the codebase/repository for this. Answer based on what you can see

• README
• Tutorial(s)
• In-code documentation
• API reference
• Overview of components
• User documentation
• Developer documentation
• Deployment documentation

Documentation contents

Which of the following piees of information are/should be included, and where?

• Purpose
• Authors
• License
• Recommended citation
• Copy-paste-able example to get started
• Dependencies and their versions or version ranges
• Installation instructions
• Tutorials covering key functionality
• Reference documentation (e.g. API) covering all functionality
• How you want to be asked questions (mailing list or forum or chat or issue tracker)
• Possibly a FAQ section
• Contribution guide

Motivation

How would you motivate your colleagues/researchers to contribute to the documentation?