docs(content/notes/config.md): Adds documentation for the new favicon support

Geoffrey Garrett

2022-06-27 a334b45b17f0966214d44a5b775c273e1ba7874b

 assets/styles/custom.scss

@@ -22,5 +22,4 @@
  --gray: #d4d4d4 !important;
  --lightgray: #292633 !important;
  --outlinegray: #343434 !important;
  --million-progress-bar-color: var(--secondary) !important;
}