fixed vendor directory in gitignore
fixed vendor directory in gitignore

emilybache/Yatzy-Refactoring-Kata,emilybache/Yatzy-Refactoring-Kata,emilybache/Yatzy-Refactoring-Kata,emilybache/Yatzy-Refactoring-Kata,emilybache/Yatzy-Refactoring-Kata,emilybache/Yatzy-Refactoring-Kata,emilybache/Yatzy-Refactoring-Kata,emilybache/Yatzy-Refactoring-Kata,emilybache/Yatzy-Refactoring-Kata,emilybache/Yatzy-Refactoring-Kata,emilybache/Yatzy-Refactoring-Kata,emilybache/Yatzy-Refactoring-Kata