add a sidebar as a quickref

_sidebar.md

+# Quick links
+
+ * [How to get help!](policy/tpa-rfc-2-support#how-to-get-help)
+ * [User documentation](docs)
+ * [Sysadmin howtos](howto)
+ * [Services](service)
+ * [Policies](policy)
+ * [Meetings](meeting)
+
+<!-- when this page is updated, home.md must be as well. -->

home.md

@@ -15,6 +15,8 @@ The documentation is split into the following sections:
  * [Policies](policy) - major decisions and how they are made
  * [Meetings](meeting) - minutes from our formal meetings
 
+<!-- when this section is updated, _sidebar.md must be as well. -->
+
 To contact us, see, [how to get help!][]
 
 [how to get help!]: policy/tpa-rfc-2-support#how-to-get-help