message: Simplify CSS in README
diff: @@ -99,9 +99,8 @@ CSS
  }
  .embla__slide {
  - flex: 0 0 auto;
  - position: relative; /* Necessary if loop: true */
  - width: 100%; /* Can be any width */
  + position: relative; /* Needed if loop: true */
  + flex: 0 0 100%; /* Choose any width */
  }
  ```
  