Sphnc documentation fix
Fixes faulty document reference in rootless/README (old reference to docker-compose-rootless.yaml). Fixes several spelling mistakes in install-docker-rootless.sh and install-podman-rootless.sh
Scheduled maintenance next weekend between Saturday, May 17, 2025, 7:00am and Sunday, May 18, 11:55pm.
Fixes faulty document reference in rootless/README (old reference to docker-compose-rootless.yaml). Fixes several spelling mistakes in install-docker-rootless.sh and install-podman-rootless.sh