Added some links to MIT OpenCourseWare courses

Added some links to MIT OpenCourseWare courses.
Those 2 courses will be useful when one going to develop machine learning algorithms. If you are end users in a casual sense, then you probably don't them. But if you are hitting a wall, yes you do need those material from MIT courses. Lots of "Traditional algorithms" taught in undergraduate algorithms courses will run into trouble and not suitable in numerical computing, and does not touch in optimization which is major building block of algorthsm dealing with with data.