message: Updated Readme.md
  Using line-height in HorizontalCell instead of margins and secondSubtitle.
diff: .HorizontalCell__subtitle {
  color: var(--text_secondary);
  + line-height: 18px;
  }
  .HorizontalCell--s {
  text-align: left;
  }
  -.HorizontalCell__title:not(:last-child),
  -.HorizontalCell__subtitle:not(:last-child) {
  - margin-bottom: 2px;
  -}
  -
  /* iOS */
  .HorizontalCell--ios:first-child::before,
  .HorizontalCell--ios:last-child::after {
  