Customize deprecated sections

When using the option printTypeOptions.deprecated set to group, the rendering can be customized using the CSS class .deprecated.

Adding a warning emoji ⚠️ is done with a quick tweak of Docusaurus CSS.

/src/css/custom.css

.deprecated a::after,
span.deprecated::after {
  content: "⚠️";
  padding-left: 4px !important;
  transform: none !important;
}

.deprecated {
  padding-top: 1rem;
}

The above CSS will render the deprecated sections as the following