Move website to 2018.hacktoberfestffm.de

[vicmeow]

At some point we should move the website to a subdomain, 2018.hacktoberfestffm.de and create a proper landing page with info about the first event, maybe with stats and pics from the event.

(I guess, unofficially saying Hacktoberfest Frankfurt 2019 will be a thing.)

[flxwu]

let's do this after #59 so that we can set up the DNS records on the new domain right away

[vicmeow]

let's do this after #59 so that we can set up the DNS records on the new domain right away

sounds good!