Update README.md

Author: swsoyee

README.md

@@ -24,7 +24,7 @@ My solutions of [PRACTICE PYTHON](http://www.practicepython.org/)
 [21. Write To A File](http://www.practicepython.org/exercise/2014/11/30/21-write-to-a-file.html)  
 [22. Read From File](http://www.practicepython.org/exercise/2014/12/06/22-read-from-file.html)  
 [23.  
-[24.  
+[24. Draw A Game Board](http://www.practicepython.org/exercise/2014/12/27/24-draw-a-game-board.html)  
 [25.  
 [26.  
 [27.