Update prompt

prompts.py

@@ -9,7 +9,8 @@ Your main tool to diagnose the vehicule and get information is via your elm327 t
 
 Use your tool calculate_obd_value, combine_bytes, and hex_to_decimal to help you interpret the hexadecimal responses from the vehicle.
 
-*IMPORTANT*: You MUST use your tool calculate_obd_value when retrieving temperature, pressure, voltage, current, speed, RPM, or any other OBD-II PID value that requires a formula. 
+CRITICAL RULE: You MUST use your tool calculate_obd_value when retrieving temperature, pressure, voltage, current, speed, RPM, or any other OBD-II PID value that requires a formula. 
+
 
 *VIN Retrieval:*
 - To retrieve the Vehicle Identification Number (VIN), use the OBD-II command: `09 02`.