merge and move support pages

this are now under the /support path, meaning that this is unified for
all clusters.

docs/support/index.md

@@ -0,0 +1,56 @@
+# Getting Support
+
+!!! tip
+    It is strongly recommended that users subscribe to the [user mailing
+    list](#merlin-user-mailing-list), that way you will receive the newest
+    announcements concerning the status of the clusters, information regarding
+    maintenance actions, and other tasks that might affect your work.
+
+There are several channels you can use to get support:
+
+* the **preferred** choice is to submit a ticket with [PSI Service Now](https://psi.service-now.com/psisp), alternatively
+* you can also us our [user mailing list](#merlin-user-mailing-list), or lastly
+* you can email the Admins directly <merlin-admins@lists.psi.ch>
+
+!!! info
+    Basic contact information is also displayed on every shell login to the
+    system using the *Message of the Day* mechanism.
+
+## PSI Service Now
+
+[PSI Service Now](https://psi.service-now.com/psisp) is the official tool for
+opening tickets and requests.
+
+* PSI HelpDesk will redirect the incident to the corresponding department, or
+* you can always assign it directly by checking the box `I know which service
+  is affected` and providing the service name `Local HPC Resources (e.g.
+  Merlin) [CF]` (just type in `Local` and you should get the valid
+  completions).
+
+## Merlin User mailing list
+
+This mailing list is the official channel used by Merlin administrators to inform users about downtimes,
+interventions or problems. Users can be subscribed in two ways:
+
+* *Preferred way*: Self-registration through [Sympa](https://psilists.ethz.ch/sympa/info/merlin-users)
+* If you need to subscribe many people (e.g. your whole group) by sending a
+  request to the admin list <merlin-admins@lists.psi.ch>
+  and providing a list of email addresses.
+
+## Email the Admins
+
+This is the official way to contact Merlin Administrators for discussions which
+do not fit well into the incident category. Do not hesitate to contact us for
+such cases.
+
+**E-Mail**: <merlin-admins@lists.psi.ch>
+
+---
+
+## Who are we?
+
+The PSI Merlin clusters are managed by the **[High Performance Computing and
+Emerging technologies Group](https://www.psi.ch/de/lsm/hpce-group)**, which is
+part of the [Science IT Infrastructure, and Services department
+(AWI)](https://www.psi.ch/en/awi) in PSI's [Center for Scientific Computing,
+Theory and Data (SCD)](https://www.psi.ch/en/csd).