Lesson 24

This lesson has us re-do the same functionality, but on two different

supports. We are moving a racecar image up, down left and right. 

Note: on the window, we need to call on winfo_x, winfo_y. to define 

movement. The initial position of the image is easy to set 

with place(). The second version is on the canvas and we call canvas_create().

it is moved with canvas. move(). As well, the image needs to be initially anchored

at NW; otherwise it would be cut in two...