They actually already did this years ago, it's here: https://choosealicense.com/ https://choosealicense.com/ It's not under the github.com domain, but they did

They actually already did this years ago, it's here: https://choosealicense.com/ https://choosealicense.com/ It's not under the github.com domain, but they did create it. IIRC they link to it somewhere when you go to create a new repo, along with a drop down to select what license you want (Assuming you're not just pushing an already created repo).