Update index.htm

Quiz.biz (Trivia games, http://www.quiz.biz/) and Quizz.biz (the french version) have just implemented OEmbed support for integrate trivia games.

I added the 2 versions because domain name and content are different.

If you need more information about theses projects, do not hesitate to contact me at julien@quizz.biz.

Julien