fix: set upstream in sync handler, cleanup docs around setting up github

Jacky Zhao

2023-12-15 c35818c336e64e43c54766a670e03cd165b59503

 quartz/components/styles/popover.scss

@@ -43,7 +43,9 @@

  visibility: hidden;
  opacity: 0;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  transition:
    opacity 0.3s ease,
    visibility 0.3s ease;

  @media all and (max-width: $mobileBreakpoint) {
    display: none !important;