Everything needs to be licensed, otherwise the default copyright laws apply. For instance, in Germany that means users may not alter anything without explicitly asking for permission. For more information see https://help.github.com/articles/licensing-a-repository/.
We want to have MADR used without any hassle and that users can just go ahead and write MADRs.
- CC0
- No license
- Other open source licenses
Chosen option: "CC0", because this license donates the content to "public domain" and does so as legally as possible.