Squashed 'ruby_ng/gitlab_to_datadog_webhook_worker/' changes from b272609..a6bfa9c

a6bfa9c Added lite instructions.

git-subtree-dir: ruby_ng/gitlab_to_datadog_webhook_worker
git-subtree-split: a6bfa9c2ae695c01fc4ce23ab989738b9f3a765a
Merge commit '07db4dd8c487dcb57dd21dc0b11d385be803ad34' into gitlab_to_datadog