bump README to Trixie and Wine 11 (#47)

Bump to trixie (#46)

* Bump to trixie

* cleanup after winetricks

* Update docker-publish.yml for Trixie

* pin `winetricks` to latest tag

Rabbit suggestion addressed

documentation: mention possible update error (#44)

* documentation: mention possible update error

* Update README.md

* wording fixes

* fix missing double whitespace

documentation: mention possible update error (#44)

* documentation: mention possible update error

* Update README.md

* wording fixes

* fix missing double whitespace

Update README.md and prepare new version (#35)

* update readme

* update version

* re-order foot notes

fix expansion `ADDITIONALFLAGS` (#30)

* Update docker-compose.yml

* Update README.md

add proper shutdown handling (#26)

* Update Dockerfile

* add stop grace period to compose file

* add proper shutdown

* fix potential race condition

* minor hardening

* `pgrep` catched wrong process

* increase grace period

* increase time for server to stop properly

Replace `PORT` with `GAMEPORT` for better clarity (#18)

* replace `PORT` with `GAMEPORT` for better clarity.
Add deprecation warning.

* enhance deprecation notice

* remove stray whitespaces

introduce `MAXPLAYERS` environment variable (#10)

* add `MAXPLAYERS` to startup script

* add `MAXPLAYERS` to docker compose

* remove stray empty line again

move steamcmd from image to runtime (#7)

* move steamcmd from image to runtime

* fix typo

* add wget failsafe switches