diff --git a/README.md b/README.md
index 1da9e9c..6820d5c 100644
--- a/README.md
+++ b/README.md
@@ -2,12 +2,18 @@
 
 This repository contains a `docker-compose.yml` file to create five containers at once:
 
+# Features
+* monitor machine data
+* monitor machine state
+
 # What's inside?
 
 * [Grafana Server](https://grafana.com/docs/grafana/latest/setup-grafana/start-restart-grafana/)
 * [Prometheus Server]()
 * [FabAccess Prometheus Exporter](https://gitlab.com/fabinfra/fabaccess/prometheus-exporter)
+    * export BFFH machine states in a prometheus metric
 * [MQTT Exporter](https://github.com/kpetremann/mqtt-exporter) for Shelly
+    * export Shelly states in a prometheus metric
 * [MQTT Exporter](https://github.com/kpetremann/mqtt-exporter) for FabDetect
 
 # How to install?