split list more cleanly

howto/grafana.md

@@ -60,9 +60,12 @@ Dashboards provisioned by Grafana should be tagged with the
 
  * `meta`: self-monitoring, mostly metrics on Prometheus and Grafana
    themselves
+
  * `network`: network monitoring, bandwidth management
+
  * `services`: service-specific dashboards, for example database, web
    server, applications like GitLab, etc
+
  * `system`: system-level metrics, like disk, memory, CPU usage
 
 Non-provisioned dashboards should be filed in one of those folders: