fix eval_dims img path

index.html

@@ -205,7 +205,7 @@ <h2 class="title is-3">Dataset Construction</h2>
                         [TODO]
                     </p>
                     <div class="columns is-centered">
-                        <img src="./static/images/eval_dims.pdf" alt="Evaluation dimensions" class="teaser-image"
+                        <img src="./static/images/eval_dims.png" alt="Evaluation dimensions" class="teaser-image"
                              width="60%" height="100%" class="center"/>
                     </div>
                 </div>