chore: just tiny copyright

Author: ovflowd

apps/site/pages/en/index.mdx

@@ -17,9 +17,9 @@ layout: home
   <div className="flex gap-4">
 
     <div className="flex flex-col gap-2">
-      <Button kind="special" className="!hidden dark:!block" href="/download">Get Node.js</Button>
+      <Button kind="special" className="!hidden dark:!block" href="/download">Get Node.j®</Button>
 
-      <Button kind="primary" className="!block dark:!hidden" href="/download">Get Node.js</Button>
+      <Button kind="primary" className="!block dark:!hidden" href="/download">Get Node.js®</Button>
 
       <Button kind="secondary" className="!block" href="/blog/announcements/node-18-eol-support">
         <span>Get security support</span>