How to add license to an existing GitHub project

Question

When I created a GitHub project I chose None.

How can I now add a GPL license to my already added project?

Answer 1

There is an easier way to get to the 'Add License' wizard:

• Go to your repository's Insights tab
• Click Community on the left side
• On the right side, click Add on the line wich says License

For some reason this is not even mentioned in the docs at github.