message: modify html tag
diff: </section>
  <div class="options">
  <div class="title sub">Options</div>
  - <ul class="option-list">
  + <div class="option-list">
  <slot name="options"></slot>
  - </ul>
  + </div>
  </div>
  <div class="demo">
  <div class="title sub">Demo</div>
  margin-bottom: 1rem
  border: 1px solid rgba(0, 0, 0, .1)
  border-radius: $radius-size-medium
  - li
  - height: 3.5rem
  + .item
  + height: 3.2rem
  border-bottom: 1px solid rgba(0, 0, 0, .1)
  &.sub
  font-size: $fontsize-medium
  margin-bottom: 1rem
  border: 1px solid rgba(0, 0, 0, .1)
  border-radius: $radius-size-medium
  - li
  + .item
  button
  width: 100%
  height: 2.5rem
  - li
  + .item
  background-color: $color-active-light-gray
  border-bottom: 1px solid rgba(0, 0, 0, .1)
  button
  