Add GitBook theme structure with Traditional Chinese docs

gitbook/components/Card.js

@@ -0,0 +1,9 @@
+const Card = ({ children, headerSlot, className }) => {
+  return <div className={className}>
+    <>{headerSlot}</>
+    <section className="shadow px-2 py-4 bg-white dark:bg-gray-800 hover:shadow-xl duration-200">
+        {children}
+    </section>
+  </div>
+}
+export default Card