- Changes the user's email from `@myproject.com` to `@example.com`. myproject.com points to a real website, it feels better to use a domain that's definitely meant as a placeholder.
- Changes the password to `changeme`, matching the credentials used for https://github.com/wagtail/bakerydemo.
Running `npm install` without `--no-save` can introduce spurious changes to package-lock.json due to differences in platform / node version, and these have been known to accidentally sneak into people's PRs. `npm install` without `--no-save` should only be used when actively updating node dependencies in package.json.