我无法将我的简单html / css / JS网站部署到heroku

Question

这是我的命令提示符的屏幕快照，可以帮助解决此问题。

I can't deploy my simple static website to heroku. please help me.
these are the commands that I  used:

 heroku login

 cd my-project/
 git init
 heroku git:remote -a quiz-game-heroku

 git add .
 git commit -am "first"
git push heroku master