diff --git a/README.md b/README.md
index ee15a8c..7d9e455 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # BEST-robotics-2023
 
-This is the robot code for DSST Cedar's robot in the 2023 BEST robotics competition.
+This is the robot code for DSST Cedar's robot in the 2023 BEST robotics competition. The `main.c` file contains all the true competition code, but the `irtest.c` file can be used to test if the IR sensor and emitter are both connected properly and color detection is functional, using the RobotC debugger.
 
 ## Port mappings