Hackergarten Basel September 2015

Hi everyone,

this is the date for Hackergarten Basel in September.

Last Hackergarten was pretty crowded and another very enjoyable Hackergarten, let's keep it up :)

(and btw, pls send a pull request with your accomplishments to https://github.com/hackergarten/hackergarten.github.io/blob/master/events.json, then are shown on the homepage now)

As always:

we're looking very much forward to hack with you, feel free to pick your favourite open source project to hack on and don't hesitate to talk/tweet/write about it beforehand so others might jump in an prepare a little bit before the Hackergarten :)