Create a GitHub account (https://github.com/signup) or log in (https://github.com/login) if you already have one.
Once logged in, click the “+” icon in the top bar, then “New Repository”:

Give your repository a name:

Make sure your repository is set to “Public”:

Scroll to the bottom and click “Create Repository”:

This will create your repository and take you to its page. Find and click “Uploading an existing file”:
