remove checkout step from instructions as v4 is the default branch

Jacky Zhao

2023-08-20 425c9789a451e69adbba2d99193e38e8915e8804

 quartz/components/styles/legacyToc.scss

@@ -12,7 +12,7 @@
      margin: 0;
    }
  }
    

  & ul {
    list-style: none;
    margin: 0.5rem 1.25rem;