Update README.md

Author: swsoyee

README.md

@@ -29,3 +29,4 @@ My solutions of [PRACTICE PYTHON](http://www.practicepython.org/)
 [26. Check Tic Tac Toe](http://www.practicepython.org/exercise/2015/11/16/26-check-tic-tac-toe.html)  
 [27. Tic Tac Toe Draw](http://www.practicepython.org/exercise/2015/11/26/27-tic-tac-toe-draw.html)  
 [28. Max Of Three](http://www.practicepython.org/exercise/2016/03/27/28-max-of-three.html)  
+[29. Tic Tac Toe Game](http://www.practicepython.org/exercise/2016/08/03/29-tic-tac-toe-game.html)Unfinished, but I have improved the game to N-in-line (N can be 3, 4, 5 or more) to win the game in a X (X >= N) large size game board. Enjoy!