Update README.md
Merge branch 'master' of https://github.com/Callisto13/Battleships into ships
minor refactoring and hit! method updated
Merge branch 'ships' of https://github.com/Callisto13/Battleships into ships
Merge branch 'development' into ships
Merge branch 'development' of https://github.com/Callisto13/Battleships into development