ci: added circle.yml
ci: added circle.yml

linearregression/docker-squid-s3,boliu83/docker-squid,korczis/docker-squid-rubygems-proxy,maqsoodumt/docker-squid,opendoor-labs/docker-squid-s3,korczis/docker-squid-rubygems-proxy,sameersbn/docker-squid,zultron/docker-provisioning,Optibus/docker-squid