Linux: update url for tech preview build
Linux: update url for tech preview build

Signed-off-by: aiordache <39812d7fd70a462e93ee0815a2f4c75f6a164b2e@docker.com>

docker/docker.github.io,docker/docker.github.io,thaJeztah/docker.github.io,thaJeztah/docker.github.io,thaJeztah/docker.github.io,thaJeztah/docker.github.io,docker/docker.github.io,docker/docker.github.io,thaJeztah/docker.github.io,docker/docker.github.io