Promoting personal GitHub repositories to an organisation account
When a project gets big, it makes sense to "promote" the repository to an organisation account.
The nice thing about [transferring a repository] is that GitHub automatically creates redirects for you.
But the problem is for the project's creator -- they should create their own fork of the repository to send pull requests. GitHub doesn't prompt you for a repository name, so this will remove all those redirects created earlier.
These instructions presume: