Docs for using Secret to store custom CA#2742

divolgin merged 1 commit intomainreplicatedhq/replicated-docs:mainfrom

divolgin/sc-113584/can-t-reuse-existing-secret-for-custom-careplicatedhq/replicated-docs:divolgin/sc-113584/can-t-reuse-existing-secret-for-custom-caCopy head branch name to clipboard