[DOCS] Updates hero image.

Author: szabosteve

docs/index-custom-title-page.html

@@ -66,7 +66,7 @@
       </p>
     </div>
     <div class="col-md-6 col-12">
-      <img class="w-100" src="https://images.contentstack.io/v3/assets/bltefdd0b53724fa2ce/bltc6d7df97554ddf5b/641c1e32585700105822b350/java-duke-lp-hero.png" />
+      <img class="w-100" src="https://images.contentstack.io/v3/assets/bltefdd0b53724fa2ce/blt1802d8f52c7bfe8f/641c2b8c33e7f95594918866/java-es-duke-lp-hero.png" />
     </div>
   </div>