diff --git a/README.md b/README.md
index 5b29a47..ba91540 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
+# tuning branch:
+optimization following turtlebot 4 configurations (running in a raspberry pi 4)
 
 # cps_loki_bringup
 This repo houses ROS2 bringup package for CPS Loki robot (small green one).