New front-page design proposal.

Hi,

As promised I made a quick front page design for postmarketos.org .

Demo here: https://www.own-mailbox.com/postmarketos.org/index.html

code here: https://gitlab.com/pparent/postmarketos.org

It is based on this theme which is under creative commons by: https://html5up.net/dopetrope

Feel free to use it! It's almost usable as such with very minor modifications.

Hope you like it, and I hope it could attract more people to test and or develop on the project.