Repository maintainers can set contributing guidelines to help collaborators make meaningful, useful contributions to a project.
To help your project contributors do good work, you can add a file with contribution guidelines to your project repository's root,
.github folder. Then, whenever someone opens a pull request or creates an issue, they will see a link to that file.
You can create a SUPPORT file to let people know about ways to get help with your project.
You can include an open source license in your repository to make it easier for other people to contribute.