message: Fix I18n example
diff: @@ -57,7 +57,7 @@ export default function (date, formatStr = 'PP') {
  import format from 'app/_lib/format'
  -window.__localeId__ = 'en'
  +window.__localeId__ = 'enGB'
  format(friday13, 'EEEE d')
  //=> 'Friday 13'
  @@ -66,7 +66,7 @@ format(friday13, 'EEEE d')
  //=> 'vendredo 13'
  // If the format string is omitted, it will take the default for the locale.
  -window.__localeId__ = 'en'
  +window.__localeId__ = 'enGB'
  format(friday13)
  //=> Jul 13, 2019
  