Merge pull request #27 from pyt-team/dev

a few fixes

Author: mhajij

packs/challenge.html

@@ -429,7 +429,7 @@ <h1>Motivation<a class="headerlink" href="#motivation" title="Link to this headi
 <figure class="align-default" id="fig-domains">
 <img alt="../_images/domain_categories_with_relations.png" src="../_images/domain_categories_with_relations.png" />
 <figcaption>
-<p><span class="caption-number">Fig. 1 </span><span class="caption-text">Domains of Topological Deep Learning. Figure adopted from <a class="reference external" href="https://arxiv.org/abs/2304.10031">Papillon et al.,
+<p><span class="caption-number">Fig. 1 </span><span class="caption-text">Domains of Topological Deep Learning. Figure adopted from <a class="reference external" href="https://arxiv.org/abs/2206.00606">Hajij et al.,
 2023.</a> (work highly recommended for
 those interested in knowing more details about these domains).</span><a class="headerlink" href="#fig-domains" title="Link to this image">#</a></p>
 </figcaption>