Add Chipper CI Docker auth instructions
Add Chipper CI Docker auth instructions

Keeping alphabetical order, added Chipper CI docker auth instructions as recommended by Docker staff
thaJeztah/docker.github.io,thaJeztah/docker.github.io,docker/docker.github.io,thaJeztah/docker.github.io,docker/docker.github.io,docker/docker.github.io,docker/docker.github.io,thaJeztah/docker.github.io,thaJeztah/docker.github.io,docker/docker.github.io