`SIGTERM` sent by `docker-compose down` is ignored

[Lx]

When running docker-compose down, the container takes a full ten seconds to stop. This indicates that the process is not honouring the SIGTERM signal sent by Docker.

I was able to fix this by adding init: true to the hisense_ac service definition in docker-compose.yaml.

This could be a good addition to the file for everyone.