corrected comment symbol

README.md

@@ -13,7 +13,7 @@ Your task is to develop the function `apogee_detector.m` :
 ```matlab
 function [ flag_apogee, data] = apogee_detector( pressure_measurment, IMU_measurment, GPS_measurment, data)
 
-# insert your code here
+% insert your code here
 ```
 
 which uses the datas measured during the flight as input and outputs the boolean variable `flag_apogee`, which must be: