add README

3 jobs for master in 17 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
failed #184
build

00:00:17

 
  Test
skipped #186
allowed to fail
code_quality
skipped #185
test
 
Name Stage Failure
failed
build Build
Skipping Git submodules setup
$ if [[ -z "$CI_COMMIT_TAG" ]]; then # collapsed multi-line command
$ /build/build.sh
Building Heroku-based application using gliderlabs/herokuish docker image...
invalid reference format
invalid reference format
invalid argument "/master:978463c4f52ae2d43658656f2e5a4cb2ad547302" for "-t, --tag" flag: invalid reference format
See 'docker build --help'.
ERROR: Job failed: exit code 1