message: Fix an example in the I18n doc
diff: @@ -43,9 +43,9 @@ instead of original functions:
  // app/_lib/format.js
  import {format} from 'date-fns/esm'
  -import {en, eo, ru} from 'date-fns/esm/locale'
  +import {enGB, eo, ru} from 'date-fns/esm/locale'
  -const locales = {en, eo, ru}
  +const locales = {enGB, eo, ru}
  export default function (date, formatStr) {
  return format(date, formatStr, {
  