Update README
The README is the landing page of this repository. Right now, the content is very old and should be updated before the next release.
Aufgrund einer Wartung am 14.05 von 8:00 bis 09:00 Uhr wird das System kurzfristig nicht zur Verfügung stehen. -- Due to maintenance on May the 14th from 8:00 am to 09:00 am the system will temporarily not be available.
The README is the landing page of this repository. Right now, the content is very old and should be updated before the next release.