Hi there ,
I was reading your page here: tails.boum.org/doc/anonymous_internet/electrum/index.es.html and what you wrote about Bitcoin got me curious.
I went online to do some more research, and among the vast ocean of "bitcoin guides for beginners" and "bitcoin definitions" I found one that stood out and made things very clear.
I think it's quite complete and easy to understand, even for "dummies" like me (it explains lots of technical words).
I just wanted to suggest this guide as an addition to your page (They say at the end that anyone can use the images they created, and I think they would be a good fit on your page):
www.vpnmentor.com/blog/ultimate-guide-bitcoin/
I hope my contribution helps,
Sophia