more visual polish, adjust colours and spacing

quartz/components/Footer.tsx

@@ -11,15 +11,13 @@ export default ((opts?: Options) => {
     const year = new Date().getFullYear()
     const name = opts?.authorName ?? "someone"
     const links = opts?.links ?? []
-    return <>
+    return <footer>
       <hr />
-      <footer>
-        <p>Made by {name} using <a href="https://quartz.jzhao.xyz/">Quartz</a>, © {year}</p>
-        <ul>{Object.entries(links).map(([text, link]) => <li>
-          <a href={link}>{text}</a>
-        </li>)}</ul>
-      </footer>
-    </>
+      <p>Made by {name} using <a href="https://quartz.jzhao.xyz/">Quartz</a>, © {year}</p>
+      <ul>{Object.entries(links).map(([text, link]) => <li>
+        <a href={link}>{text}</a>
+      </li>)}</ul>
+    </footer>
   }
 
   Footer.css = style