v1.9

Add free space button in HTML

v1.8

Add feature to increase score by checking the free space button that puts a free space cell marked in the center of the bingo board.

v1.7

Add bonus points when game is finished

v1.6

Add score multiplier for making multiple bingos in a marked cell

v1.5

Fix some bugs

v1.4

Add time score multiplier bonus for marking a cell quickly.

v1.3

Add bonus points every time a bingo is made of 5 in a line

v1.2

Add combo score multiplier

v1.1

Add score multiplier bonus for marking cells when number called first

v1.0

Initialize bingo game with score multipliers