docs: update plugin documentation (#888)

Eiko Wagenknecht

2024-02-23 1929241a62b67ebd9cc9831e372ab321874d03d1

 quartz/styles/callouts.scss

@@ -157,6 +157,6 @@
  }

  .callout-title-inner {
    font-weight: $boldWeight;
    font-weight: $semiBoldWeight;
  }
}