Quickly customize repository templates for issues, pull requests and contributions neatly packaged into a .github folder.

the .github folder in the root of a GitHub repo is for community templates & info like Pull Request and Issue templates

To learn more see

• https://blog.github.com/2016-02-17-issue-and-pull-request-templates/
• https://help.github.com/articles/setting-guidelines-for-repository-contributors/