Suggestion to add to the README

[p2635]

Hi @filiphric , thank you for creating this wonderful course. I only just realized you have a more up to date version of your repo here: https://github.com/filiphric/cypress-basics-tau. Although this is for the introductory course, I will use this for the advanced one as well.

I didn't realize until now. I was about to try migrating the cypress 6 tests to 13, but your other repo will save me time. I can just focus on learning the concepts. It might be worth updating the README for new students.