Update documentation for Docker Compose V2 (i.e. compose plugin)
Docker now officially supports Docker Compose in the form of a plugin
for the docker
command.
See: https://www.docker.com/blog/announcing-compose-v2-general-availability/
Following the official Docker documentation for Linux will install the
Docker Compose plugin. We can remove the mention to the docker-compose
package.
Command lines and pointers to the documentation are now updated accordingly.
Migrated from D8478 (view on Phabricator)