Refer to "JupyterHub" instead of VRE in the header links

Author: smithara

docs/_templates/sections/header.html

@@ -4,13 +4,13 @@
     </div>
     <div class="section">
         <a href="https://vires.services" target="_blank" class="link">VirES for Swarm</a>
-        <a href="https://vre.vires.services" target="_blank" class="link">Swarm VRE</a>
+        <a href="https://vre.vires.services" target="_blank" class="link">Swarm JupyterHub</a>
         <a href="https://notebooks.vires.services" target="_blank" class="link">Swarm Notebooks</a>
         <a href="https://swarmpal.readthedocs.io" target="_blank" class="link">SwarmPAL</a>
     </div>
     <div class="section">
         <a href="https://aeolus.services" target="_blank" class="link">VirES for Aeolus</a>
-        <a href="https://vre.aeolus.services" target="_blank" class="link">Aeolus VRE</a>
+        <a href="https://vre.aeolus.services" target="_blank" class="link">Aeolus JupyterHub</a>
         <a href="https://notebooks.aeolus.services" target="_blank" class="link">Aeolus Notebooks</a>
     </div>
 </div>