Use "or" to convey that OS options are unique (#70332)

docs/sources/setup-grafana/installation/_index.md

@@ -23,9 +23,9 @@ Grafana relies on other open source software to operate. For a list of open sour
 
 Grafana supports the following operating systems:
 
-- [Debian/Ubuntu]({{< relref "./debian" >}})
-- [Red Hat/RHEL/Fedora]({{< relref "./redhat-rhel-fedora" >}})
-- [SUSE/openSUSE]({{< relref "./suse-opensuse" >}})
+- [Debian or Ubuntu]({{< relref "./debian" >}})
+- [Red Hat, RHEL, or Fedora]({{< relref "./redhat-rhel-fedora" >}})
+- [SUSE or openSUSE]({{< relref "./suse-opensuse" >}})
 - [macOS]({{< relref "./mac" >}})
 - [Windows]({{< relref "./windows" >}})