Fix subdomain to strandlab.net

layouts/custom/cellxgene.html

@@ -29,7 +29,7 @@
 }
 </style>
 <div class="cellxgene">
-    <iframe name="embed" src="https://cellxgene.swmed.edu/view/{{ .Params.location }}.h5ad/" width="100%" height="100%" frameborder="0" allowfullscreen="" ></iframe>
+    <iframe name="embed" src="https://cellxgene.strandlab.net/view/{{ .Params.location }}.h5ad/" width="100%" height="100%" frameborder="0" allowfullscreen="" ></iframe>
 </div>
 <div class="no-cellxgene">
     <h2>Screen width too narrow to display cellxgene</h1>