fix: download of mkwttb.html using firefox was not working

When clicking on the download button, firefox was not downloading the application.
Instead it was redirecting to the 404 pages.

Author: Lukinoh

src/views/readme/readme.tsx

@@ -78,9 +78,9 @@ export const Readme: Component = () => {
         </li>
       </ul>
 
-      <A class="button" href="/index.html" download={"mkwttb.html"}>
+      <a class="button" href="index.html" download="mkwttb.html">
         Download
-      </A>
+      </a>
 
       <h2>FAQ</h2>