Add readme with a short guide for plugins

README.md

@@ -0,0 +1,32 @@
+# Grafana
+
+> The open and composable observability and data visualization platform. 
+
+<!-- metadata -->
+
+* **Category**: Apps
+* **Status**: wip
+* **Image**: [`grafana`](https://hub.docker.com/r/grafana/grafana), 4, upstream
+* **Healthcheck**: 
+* **Backups**: 
+* **Email**: 
+* **Tests**: 
+* **SSO**: 
+
+<!-- endmetadata -->
+
+## Quick start
+
+* `abra app new grafana`
+* `abra app config <app-domain>`
+* `abra app deploy <app-domain>`
+
+## Plugins
+
+To install and enable a grafana plugin start by finding the repository name, for example the [ClickHouse datasource](https://grafana.com/grafana/plugins/grafana-clickhouse-datasource/?tab=installation) is "grafana-clickhouse-datasource".
+
+Open the config options for your instance with `abra app config <app-domain>`, Take the plugin repository name and paste it in the variable `GRAFANA_PLUGINS`. 
+
+If you would like to add multiple plugins just make sure they are comma separated eg. `GRAFANA_PLUGINS=grafana-clickhouse-datasource, alexanderzobnin-zabbix-app`.
+
+For more, see [`docs.coopcloud.tech`](https://docs.coopcloud.tech).