Refactor support information

doc/administration/gitaly/praefect.md

@@ -2,18 +2,18 @@
 type: reference
 ---
 
-# Gitaly Cluster **(PREMIUM)**
-
-NOTE: **Note:**
-Support for Gitaly Cluster is only available through [Priority
-Support](https://about.gitlab.com/support/#priority-support) for self-managed
-Premium and Ultimate customers.
+# Gitaly Cluster
 
 [Gitaly](index.md), the service that provides storage for Git repositories, can
 be run in a clustered configuration to increase fault tolerance. In this
 configuration, every Git repository is stored on every Gitaly node in the
 cluster. Multiple clusters (or shards), can be configured.
 
+NOTE: **Note:**
+Gitaly Clusters can be created using [GitLab Core](https://about.gitlab.com/pricing/#self-managed)
+and higher tiers. However, technical support is limited to GitLab Premium and Ultimate customers
+only. Not available in GitLab.com.
+
 Praefect is a router and transaction manager for Gitaly, and a required
 component for running a Gitaly Cluster.