A readme and the repo name

[mYnDstrEAm]

Is this the source code for the ZDF Mediathek addon? What's https://github.com/sarbes/script.module.libmediathek4? Please add a basic readme and change the name.

[mYnDstrEAm]

The github link at https://kodi.tv/addons/matrix/plugin.video.zdf_de_lite is broken and it should be fixed. Please also see #4