added binary in gitignore
added binary in gitignore

paulohrpinheiro/test-driven-learning,paulohrpinheiro/test-driven-learning,paulohrpinheiro/test-driven-learning,paulohrpinheiro/test-driven-learning,paulohrpinheiro/test-driven-learning,paulohrpinheiro/test-driven-learning,paulohrpinheiro/test-driven-learning