Rework docs to add new detailed example section#1141

nathanjmcdougall merged 1 commit intomainusethis-python/usethis-python:mainfrom

1135-give-a-worked-example-explaining-the-tick-and-box-messages-in-the-output-from-a-commandusethis-python/usethis-python:1135-give-a-worked-example-explaining-the-tick-and-box-messages-in-the-output-from-a-commandCopy head branch name to clipboard