And by magic you mean not well documented, right? https://help.github.com/articles/autolinked-references-and-urls/#issues-and-pull-requests https://help.github

And by magic you mean not well documented, right? https://help.github.com/articles/autolinked-references-and-urls/#issues-and-pull-requests https://help.github.com/articles/autolinked-references-and-u... https://github.com/blog/957-introducing-issue-mentions https://github.com/blog/957-introducing-issue-mentions https://help.github.com/articles/closing-issues-via-commit-messages/ https://help.github.com/articles/closing-issues-via-commit-m...