Update architecture.html

architecture.html

@@ -37,12 +37,14 @@
                   <p class="mb-4">The Puhuri services deal with personal data and have been analysed from the perspective of GDPR compliance. Required contracts have to be signed prior to access to the production environment of Puhuri Core.<p class="mb-4"></p>
                     </p>
 
-                On service provider side, Puhuri supports different integrations:
+                On the service provider side, Puhuri supports different integrations:
                 <ul>
-                <li>Slurm Workload Manager</li>
-                <li>OpenStack</li>
-                <li>Rancher Kubernetes</li>
-                <li>CSCS FireCREST</li>
+                <li>Slurm Workload Manager - one of the most popular job schedulers</li>
+                <li>OpenStack - open-source IaaS solution for running on-premise cloud</li>
+                <li>Rancher Kubernetes to run K8s on top of OpenStack virtual machines</li>
+                <li>CSCS FireCREST - API for job submission on top of SLURM</li>
+                <li>HEAppE - RESTAPI for controlled execution of workloads on the HPC cluster</li>
+                <li>Open OnDemand - easy-to-use web portal for accessing supercomputers</li>
               </ul>
             </div>