Document .env files needed for `docker-compose start`

[Sam Mikes]

Is this a feature request or a bug?

Documentation bug

Expected behavior:

docker-compose start
-> running registry

Actual behavior:

Environment files need to be created first:

Svarog:entropic smikes$ touch ./services/registry/.env
Svarog:entropic smikes$ touch ./services/web/.env
Svarog:entropic smikes$ touch ./services/storage/.env

Steps to replicate:

Clone repo, attempt to start registry with docker-compose start

[zacanger]

That's documented here, but maybe needs to be more obvious.

[Sam Mikes]

Thanks.