I couldn't quickly tell where this should go, so couldn't make a PR, but here is the reference to the broken link:
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If you plan to use GitHub, you need to make sure your local Git can pull from and push to GitHub.com. That is beyond the scope of this article, but see the [Connect to GitHub](https://happygitwithr.com/push-pull-github.html) section in Happy Git. You probably don't want to enter your username and password all the time, so either [cache credentials for HTTPS](https://happygitwithr.com/credential-caching.html) or [set up SSH keys](https://happygitwithr.com/ssh-keys.html). If you are an SSH person, set the `usethis.protocol` option to "ssh" (as of v2.0.0, "https" is the usethis default). |
