docs: function capitalize (text) {
    return text
      .replace (/^([^A-Za-z]*)([a-z])/, function (m, g1, g2) { return g1 + g2.toUpperCase() })
      .replace (/([\.\!\?]\s*)([a-z])/g, function (m, g1, g2) { return g1 + g2.toUpperCase() })
  }