Update the Complexity ML partner logo

Use the current logo from the official Complexity website and point the existing partner entry to the AETHORIA-AI organization. No other README content is changed.

README.md

@@ -472,8 +472,8 @@ body{
       </a>
     </li>
     <li>
-      <a href="https://huggingface.co/Pacific-i64" target="_blank" rel="noopener noreferrer">
-        <span class="icon"><img src="./logo-complexity.png" alt="Complexity ML" /></span>
+      <a href="https://huggingface.co/AETHORIA-AI" target="_blank" rel="noopener noreferrer">
+        <span class="icon"><img src="./logo-complexity.svg" alt="Complexity ML" /></span>
         Complexity ML
       </a>
     </li>
@@ -481,4 +481,4 @@ body{
 </div>
 
 </body>
-</html>
+</html>