added free courses (#6551)
* Update free-courses-en.md Added free courses with their link for machine learning and data science. * Update free-courses-en.md Added free courses for data science and machine learning with correct alphabetical order. * Update free-courses-en.md Added free course for machine learning in alphabetical order. * Update free-courses-en.md * Update free-courses-en.md
Showing
想要评论请 注册 或 登录