Added some links to MIT OpenCourseWare courses

Added some links to MIT OpenCourseWare courses.
Clare, by skimming through the course contents of this course, it appears as a basic algorithm implementation on numeric computations, because it isn't really rich in traditional algorithms, but it explores the domain of linear and non-linear optimization like (Branch-and-bound, cutting-plane, etc.)

But the second one, appears just as a subset to the MIT course. So, I guess, it could be skipped.