diff --git a/README.md b/README.md
index 8c66756..9a9a28a 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,5 @@
 **Warning: there are dependency problems. And if it is fixed in some time, it may not install properly!**
 # run
 	sh start.sh
+If started it will watch the `~/Downloads` folder and prints automaticly all `label.pdf` and `label_rot90.pdf`.
+### Be careful to print not too fast! There is some bug when you print too fast and some will be skipped!