docs: add sidneys artist handbook to showcase

Jacky Zhao

2024-01-13 4e82b0d8ce805ca832e08bafcfe5144e352c2d05

 quartz/components/Header.tsx

@@ -9,7 +9,7 @@
  display: flex;
  flex-direction: row;
  align-items: center;
  margin: 2em 0;
  margin: 2rem 0;
  gap: 1.5rem;
}