docs: add Storj as a sponsor

docs/layouts/chrome/menu.html

@@ -12,7 +12,7 @@
 
 <div class="card">
   <div class="card-header" style="padding: 5px 15px;">
-    Gold Sponsors
+    Gold Sponsor
   </div>
   <div class="card-body">
     <a href="https://www.idrive.com/e2/?refer=rclone" target="_blank" rel="noopener" title="Visit rclone's sponsor IDrive e2"><img src="/img/logos/idrive_e2.svg" viewBox="0 0 60 55"></a><br />
@@ -22,12 +22,20 @@
 {{if .IsHome}}
 <div class="card">
   <div class="card-header" style="padding: 5px 15px;">
-    Silver Sponsors
+    Silver Sponsor
   </div>
   <div class="card-body">
     <a href="https://min.io/persona/developers?utm_source=rclone&utm_medium=display&utm_campaign=developers-know-rclone-part-0823" target="_blank" rel="noopener" title="High Performance Object Storage, Any Cloud, Any HW, Any Workload"><img src="/img/logos/minio.svg"></a><br />
   </div>
 </div>
+<div class="card">
+  <div class="card-header" style="padding: 5px 15px;">
+    Silver Sponsor
+  </div>
+  <div class="card-body">
+    <a href="https://www.storj.io/partner-solutions/rclone" target="_blank" rel="noopener" title="Visit rclone's sponsor Storj to see offer"><img src="/img/logos/storj-rclone-highlight.jpeg" style="max-width: 100%; height: auto;"></a><br />
+  </div>
+</div>
 {{end}}
 
 <div class="card">