ref(cellularization): update repo readme to reflect grouping mechanism#87

mchen-sentry wants to merge 1 commit intomaingetsentry/gocd-jsonnet:mainfrom

mingchen/di-1604-update-gocd-jsonnet-repo-docs-with-new-grouping-mechanismgetsentry/gocd-jsonnet:mingchen/di-1604-update-gocd-jsonnet-repo-docs-with-new-grouping-mechanismCopy head branch name to clipboard