To add headerLinks, code is
headerLinks: [
{ doc: "introduction", label: "Docs" },
{ doc: "faq", label: "FAQ" },
{
href: "https://github.com",
label: "Github",
},
{
href: "https://example.com",
label: "Hire Us",
},
I want to add an icon before "Hire Us" content. What should I write?