Merge branch 'patch-2' into 'master'

remove line about being a template

See merge request !49

Crystal.gitlab-ci.yml

-# This file is a template, and might need editing before it works on your project.
 # Official language image. Look for the different tagged releases at:
 # https://hub.docker.com/r/crystallang/crystal/
 image: "crystallang/crystal:latest"