Added quizes to technical blog posts

Added

We have added around 40x quizes to our longer, more technical blog posts. Each quiz consists of flashcards, click to reveal the answer, and a quiz.

The quiz asks for your name - we cant turn this off (there is no setting in the backend to do so) - and your name doesnt go anywhere. Its not collected, we wont be reaching out to anyone who participates in a quiz.