diff --git a/README.md b/README.md
index 0e626cb..dc3a28c 100644
--- a/README.md
+++ b/README.md
@@ -21,3 +21,15 @@ docker ps | grep prometheus | awk '{print $1}' | xargs docker kill -s SIGHUP
 5. Import this dashboard: https://grafana.com/grafana/dashboards/1860 to grafana.
 
 That's it!
+
+If you want to add more servers to prometheus, make these steps:
+1. Install node-exporter to each of these servers via these commands:
+```
+git clone https://github.com/digitalstudium/grafana-docker-stack.git
+docker stack deploy -c grafana-docker-stack/node-exporter.yml node-exporter
+```
+2. Add these servers to `/var/lib/docker/volumes/monitoring_prom-configs/_data/prometheus.yml` file to `- targets: ['node-exporter:9100']` list of `- job_name: 'node-exporter'` section, like `- targets: ['node-exporter:9100', 'server1:9100', 'server2:9100', '...']`
+3. Reload prometheus config via this command:
+```
+docker ps | grep prometheus | awk '{print $1}' | xargs docker kill -s SIGHUP
+