Add Backstage to Roadie docs for better discoverability#270

BartoszBlizniak wants to merge 2 commits intomaincloudsmith-io/cloudsmith-docs:mainfrom

ceng-599-update-roadie-documentation-to-also-mention-backstagecloudsmith-io/cloudsmith-docs:ceng-599-update-roadie-documentation-to-also-mention-backstageCopy head branch name to clipboard