provide file to include in nginx-server-configurations

unlike apache2 and lighttpd, there is no way to autoconfigure the /phpmyadmin-location for all servers. But we can create a file which can be included and write a readme.

See: https://serverfault.com/a/845376/265468
Related: #19

Edited Jun 13, 2019 by Matthias Blümel

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information