Add Netflix series deck (Fixes #37)

[kat-kan]

Fixes #37 :

• Add new deck with Netflix series - 13 cards
• Add a new category in index.html Two minor changes in other decks:
• Fix typo in Harry Potter deck - "Hermoine" to "Hermione"
• Fix incorrect statement in countries deck - France - it was written that Marie Curie was born in France which is incorrect because she was born in Warsaw, Poland (I'm from Poland as well). However, she died in France and that's how I changed it. Probably there could be a better hint related to France but I didn't want to intervene too much.

Screenshot from tests:

[N-Shar-ma]

@kat-kan Looks fun, thanks for the new deck! Really appreciate the 2 corrections too! (making them in a different commit from the new deck would have been ideal but it's no big deal!)