readme update 3

README.md

@@ -27,12 +27,18 @@ From the root directory: *python infinite_maze*
 - Points are taken away based on each movement the player performs to the *left*.
 - Pace will start at the 30 second mark, and become incrementally quicker every 30 seconds onwards.
 
-## Assets
-Infinite Maze Game makes use of the Pygame library, which is a simple and easy way to
-create basic games, import images, and draw shapes.
-
 ## Specifications
 The only software needed to run this program is Python. Infinite Maze Game
 was developed and tested using Python (v2.7.11).
 
-
+## Special Features
+Infinite Maze Game makes use of the Pygame library, which is a simple and easy way to
+create basic games, import images, and draw shapes. More information on Pygame can be found
+[here](https://www.pygame.org/docs/).
+
+## For Developers
+### Code Structure
+|  Directory         |  Description  |
+| ------------------ | ------------- |
+| *./img/*           | Image resources used in the game. |
+| *./infinite_maze/* | All Python code, and complied files. |