update version in index.html

Author: bourgeoa

index.html

@@ -38,7 +38,7 @@ <h2>Server info</h2>
       <dt>Name</dt>
       <dd>localhost</dd>
       <dt>Details</dt>
-      <dd>Running on <a href="https://github.com/solid/node-solid-server/releases/tag/v5.6.6">Solid 5.6.6</a></dd>
+      <dd>Running on <a href="https://github.com/solid/node-solid-server/releases/tag/v5.7.3">Solid 5.7.3</a></dd>
     </dl>
   </section>
 </div>