chore: version bump

wumpus/__init__.py

 from wumpus.wumpus import WumpusWorld, Hunter, Wumpus, Pit, Gold, Exit
 from wumpus.gridworld import Player, UserPlayer, RandomPlayer, Coordinate, coord
 
-__version__ = '0.1.4'
\ No newline at end of file
+__version__ = '0.2.0'