docs: update servers page text

We now have more than four servers, and some are kubernetes workers/HPC
nodes. This commit updates the text to reflect that.

ocfweb/docs/templates/docs/servers.html

@@ -2,7 +2,7 @@
 
 {% block content %}
     <div class="ocf-content-block">
-      <p>At the OCF, there are four physical servers whose job is to host virtual servers. These physical servers are hypervisors running QEMU and KVM. The servers which people see on a daily basis, like the login server, the web server, the print server, and things like that are all virtual machines hosted on these hypervisors.</p>
+      <p>The OCF has multiple physical machines. Some of these are hypervisors, which host virtual servers running on QEMU and KVM. We also have servers that are workers for our Kubernetes cluster, and others comprise our High Performance Computing cluster.
       <p>Below is a list of some servers and other hosts at the OCF. VMs are grouped under the hypervisor hosting them.</p>
     </div>