message: Added: blockquote class
diff: .Markdown__text {
  display: inline-block;
  font-size: var(--component-markdown-font-size);
  - font-weight: normal;
  }
  .Markdown__text--paragraph {
  - font-size: calc(var(--component-markdown-font-size));
  + display: block;
  + font-weight: normal;
  }
  .Markdown__text--strong {
  - font-size: calc(var(--component-markdown-font-size));
  font-weight: 700;
  }
  }
  .Markdown__heading--level6 {
  - font-size: calc(var(--component-markdown-font-size) * 1.0);
  + font-size: calc(var(--component-markdown-font-size) * 1);
  }
  -.Markdown__horizontalRule {}
  +.Markdown__horizontalRule {
  + border-top: 1px solid var(--color-basic-darkGray);
  + border-bottom: 1px solid #fff;
  + border-radius: 5px;
  +}
  .Markdown__break {}
  .Markdown__list--ordered {}
  -.Markdown__list--unordered {}
  +.Markdown__list--unordered {
  +}
  .Markdown__listItem {
  position: relative;
  - font-size: calc(var(--component-markdown-font-size));
  padding-left: 10px;
  + font-size: var(--component-markdown-font-size);
  }
  .Markdown__list--unordered .Markdown__listItem::before {
  - content: "";
  position: absolute;
  top: 10px;
  left: 0;
  display: block;
  width: 5px;
  height: 5px;
  - border-radius: 50%;
  + content: "";
  background-color: var(--color-basic-darkGray);
  + border-radius: 50%;
  +}
  +
  +.Markdown__blockquote {
  + position: relative;
  + padding: 0 20px;
  + font-style: italic;
  + color:var(--color-basic-darkgray);
  + border-left: solid 5px var(--color-basic-gray);
  +}
  +
  +.Markdown__blockquote .Markdown__text--paragraph {
  + position: relative;
  + font-size: calc(var(--component-markdown-font-size) * 0.8);
  }
  