updated README

updated README

updated READ<E

finalized game by improving interaction again

improved interaction between client and server, client now gets to see the board before it's the player's turn

improved the ways messages are sent between client and server and introduced new msg type BOARD

did some refactoring and added support for multiple concurrent games

two players can now play each other, however only the best case scenario is implemented, need more failure and exception handling

added client and server and set up basic communication (clients can connect and receive confirmation messages)

added comments in cli

few api changes for the game logic so that it can be used more functionally from outside

added simple cli so two players can play against each other now

added better function to make choice

added function to determine whose turn it is

switched left and right in Either to make code more idiomatic