Add README.md

8 jobs for master in 23 seconds (queued for 3 seconds)
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:eaa25ba91d93f5350ab0e36658d4af8c3ad7c91b" for "-t, --tag" flag: invalid reference format
See 'docker build --help'.
ERROR: Job failed: exit code 1