Update index.html

index.html

@@ -1156,7 +1156,7 @@
                     </div>
                 </a>
                 <!-- BEST 4: Ultimate File Converter -->
-                <a href="https://convert.humangen.ai" target="_blank" class="card best-card" data-tags="best,tools,converter,file,data,csv,json,excel,parquet,image,png,jpg,webp,audio,mp3,wav,video,mp4,document,pdf,archive,zip,config,yaml,encoding,base64">
+                <a href="https://conv.humangen.ai" target="_blank" class="card best-card" data-tags="best,tools,converter,file,data,csv,json,excel,parquet,image,png,jpg,webp,audio,mp3,wav,video,mp4,document,pdf,archive,zip,config,yaml,encoding,base64">
                     <div class="card-preview gradient-best">
                         <span>🔄</span>
                         <span class="card-badge badge-best">🏆 BEST</span>