Feature request & enhacement proposals. Documentation.

[mpancorbo]

Hi!

Thanks for this great app! I'm using now pwdhash and I consider your app a promising future drop in for the latter.

I have some suggestions to do, but I prefer to open a separate issue for each one. At this moment I'd like to ask you for a good documentation about the hash & encoding procedures. This is important if sometime in the future your app dissapear and people want to recover their passwords.