[Documentation] Documentation of way of run the code

  - Added the way of run the the code. 

 Task #3.3

Author: mahbubcseju

README.md

@@ -58,12 +58,12 @@ My main target here is to provide an appropriate visualization of drone's path a
 
    1. To display each sweep run the following command:  
 
-       -  python droneflight.py --dis "LIDARDPoints.csv" "FlightPath.csv"
+         -  python droneflight.py --dis "LIDARDPoints.csv" "FlightPath.csv"
 
       Here please put your own LIDARDPoints.csv and FlightPath.csv file.
    2. To optimize the path please run the following command:
 
-       - python droneflight.py --op "LIDARDPoints.csv" "FlightPath.csv" "OutputFlightPath.csv"
+         - python droneflight.py --op "LIDARDPoints.csv" "FlightPath.csv" "OutputFlightPath.csv"
 
       Output will be stored in file "OutputFlightPath.csv". Here please put your own LIDARDPoints.csv,
       FlightPath.csv and OutputFlightPath.csv file name.