Add more details for users to create a repository on GitHub

[larnsce]

You can use the material from ds4owd as guidance. Add screenshots for the fssample example, so that the user can follow through every step of the way.

https://ds4owd-001.github.io/website/assignments/md-05/am-05-1-project-data.html#step-2-create-a-new-repository-on-github-clone-to-posit-cloud

Connected to review of washr package: openwashdata/washr#34