diff --git a/readme.md b/readme.md
index 209e25d..7afbcdd 100644
--- a/readme.md
+++ b/readme.md
@@ -2,3 +2,7 @@
 
 a tool to help choosing the best quality price ratio for a compute node
 
+usage:
+```console
+graffy@graffy-ws2:~/work/concho$ PYTHONPATH=. python3 ./tests/test1.py 
+```