Created an arc drawing for each tile.

This was definitely trickier than the previous two examples we looked at, and there was a significant amount of trial
and error to get this functional. Specifically, having the turtle return to its original starting point was tricky as
there was a bug where the turtle would glitch around the screen before settling on its end point, which threw me off for
some time. Thankfully, I just began testing some different combinations one at a time until I achieved the desired outcome.

tile_grid.py

@@ -10,7 +10,7 @@ from tile import fly
 def draw_tile_grid(width, height, tile_size, tile_function):
     """Draws a (width x height) grid, with tile_function drawn on each tile.
 
-    (Your explanation here.)
+    Uses the tile_size function to create an evenly distributed grid before returning to starting position.
     """
     for y in range(height):
         for x in range(width):