Link to website does not exist.

[qbi]

The README contains a link to a webpage from @foosel. This site does not exist anymore. Is there another site? Where should the link target to?

[michitux]

https://www.dokuwiki.org/plugin:flattr

Feel free to open a pull request. This plugin is currently not maintained, I have no idea if it still works.

The documentation should also be migrated from the old website which is available on archive.org (link is on the page on dokuwiki.org).