Update spelling error in index.html

s/cryptocurrnecies/cryptocurrencies
Additional written content for the page

I haven't seen how this looks.  I'd really like both Kyle and lman's input on this too.

Any other revisions or additions?  Please add/make.
Reformat to fit

Checking this too.
more formatting

fitting the content to the blue boxes.
Update faq.html

New content and other minor revisions.
Clean Up