initial commit.

components/markdown/link.tsx

@@ -0,0 +1,14 @@
+import NextLink from "next/link";
+import { ComponentProps } from "react";
+
+export default function Link({ href, ...props }: ComponentProps<"a">) {
+  if (!href) return null;
+  return (
+    <NextLink
+      href={href}
+      {...props}
+      target="_blank"
+      rel="noopener noreferrer"
+    />
+  );
+}