Update main.py

Author: tisljaricleo

main.py

@@ -1,10 +1,10 @@
 from gps_class import GPSVis
 
 vis = GPSVis(data_path='data.csv',
-             map_path='map.png',
-             points=(45.8357, 15.9645, 45.6806, 16.1557))
+             map_path='map.png',  # Path to map downloaded from the OSM.
+             points=(45.8357, 15.9645, 45.6806, 16.1557)) # Two coordinates of the map (upper left, lower right)
 
-vis.create_image(color=(0, 0, 255), width=3)
+vis.create_image(color=(0, 0, 255), width=3)  # Set the color and the width of the GNSS tracks.
 vis.plot_map(output='save')
 
-print()
+print()