fix README.md

it was a shitty joke anyway
Checked for draw in win function
Added checkWin, changed Move to account for checkWin
Fixed typo in README
fix token placement in Move function

placement checking has to start at the top of the board
to detect any blockers that might be in the way
modify formatting
fix IsValidMove handling of out-of-bounds col
fix Move not recording blocker usage
fix default game state
add NewGameDefault()
modify README
initial commit