feature: Create better example configurations

[fucksophie]

I think that caddy-security would benefit from better, more complete configurations. I am free to share my Dex + caddy-security + glauth configuration.

This would entail full docker-compose files and configuration files of all parts involved. Caddyfile and user definition and whatnot else.

[greenpau]

Feel free to add example here: https://github.com/authcrunch/authcrunch.github.io/tree/main/docs/examples