More uni notes to make studying enjoyable

Added some new uni notes to the Sydney Uni page:

• ELEC4505 Digital Communication Systems taught by Hon. Assoc. Prof. Iain Collings
• ELEC3506 Data Communications and the Internet taught by Dr. Kyle Zhou and Dr. Lavy Libman
• COMP3609 Algorithms and Complexity (Advanced) taught by Dr. Taso Viglas
  • It’s now a second year course, called COMP2007.

That’s it for now, enjoy.