LICENSE held only the two-line stub and no LICENSE.md existed, so the
repo carried no license text for a human browsing it or for GitHub's
license detector.
usethis::use_mit_license() writes LICENSE.md but leaves an existing
LICENSE alone, so the stub kept saying 'Civilytics' while the full text
said 'Civilytics Consulting LLC'. Corrected by hand, with a test pinning
the two together.
