(fix): Path

Author: ArneTR

content/en/docs/cluster/installation.md

@@ -80,7 +80,7 @@ Type=simple
 User=gc
 Group=gc
 WorkingDirectory=/home/gc/green-metrics-tool/
-ExecStart=/home/gc/green-metrics-tool/venv/bin/python3 -u /home/gc/green-metrics-tool/tools/client.py
+ExecStart=/home/gc/green-metrics-tool/venv/bin/python3 -u /home/gc/green-metrics-tool/cron/client.py
 Restart=always
 RestartSec=30s
 TimeoutStopSec=600