adds restore docs for docker based instances (#18844)
adds restore docs for docker based instances (#18844)

* adds docke restore section

* fix typo

* Update docs/content/doc/usage/backup-and-restore.en-us.md

Co-authored-by: Gusted <d02dbed052e28c2380acdd37568fd76142823678@hotmail.com>

* fix container id placeholder

* adds restore help for docker-rootless

* restore yml autoformater quotes

Co-authored-by: Marco Blessing <93b1be9822e68f7febc33e9e7bb28b2f4952bafd@komm.one>
Co-authored-by: Gusted <d02dbed052e28c2380acdd37568fd76142823678@hotmail.com>
Co-authored-by: techknowlogick <274271a2414b6bd0d2eb0401dd4ff6e85d7016a7@gitea.io>
go-gitea/gitea,go-gitea/gitea,go-gitea/gitea