How do I make a project public

I’m using GitHub app for CircleCI (not the GitHub oauth) for a public GitHub repo. The badge does not work without a token (when I try to open it in incognito) and it says that I need to add a token in private projects. It seems that the project is private, but there is no ‘make public’ button in the settings. It’s github.com/romw314/dollar-syntax and CircleCI project is app.circleci.com/pipelines/circleci/S66FZnTFuLNB2ZgMMBVtKW/MLxC9CBSWmvZfDAqBjzeaC.