Set up GitHub Pages properly

[balazsbotond]

Is your feature request related to a problem? Please describe.
We need a basic website. This would give more credibility to the project.

Describe the solution you'd like
A simple way to do this would be to just publish the README as a web site. Copy the docs folder to the github pages branch and copy the contents of the README into index.md.

Describe alternatives you've considered
We could build a fancier, more complex website but I honestly don't have either the time or the patience to do so.

[balazsbotond]

Done.