Added UoC Greek-speaking video lectures, includes a couple of English…

…-speaking lectures. (#327)

* Update README.md

* Update README.md

README.md

@@ -1173,3 +1173,4 @@ Pricing Theory I / Applied Probability for Mathematical Finance - University of
 - [Design Thinking for Digital Engineering (SS 2018) - Dr. Julia von Thienen - HPI](https://www.tele-task.de/series/1206/)
 - [CS224w – Social Network Analysis – Autumn 2017 - Stanford University](http://snap.stanford.edu/class/cs224w-videos-2017/)
 - [The Missing Semester of Your CS Education](https://missing.csail.mit.edu/)
+- [University of Crete, Computer Science video lectures (mostly Greek language lectures, very few 100% English-speaking courses). Very popular CS destination for European Erasmus students](https://opencourses.uoc.gr/courses/course/index.php?categoryid=28)