Fixed documentation

images/get_img.py

@@ -4,7 +4,7 @@ import matplotlib.pyplot as plt
 def save_bike_image(points_position, counter):
     """This function save an image of the bike.
 
-    :param points_position: provide bike coordinates
+    :param points_position: provide bike coordinates as numpy array
     :param counter: provide bike number
     :return: bike image file
     """