Create documentation

[pdonorio]

Bring some docs up with mkdocs + readthedocs website

[pdonorio]

Created the docs with mkdocs in eb827a7407a56667d012bda66d3206a13ffe2c4a

Create the free documentation on readthedocs at the url http://eudat-and-docker.readthedocs.org/

Added to this repo the webhook following the address: http://read-the-docs.readthedocs.org/en/latest/webhooks.html

Added the link to the readme in aaeeb1302e1083363b2b16c598afbd4179359fd3

The webhook is yet to test

[pdonorio]

Hook tested successfully :)