Update README with centralized layout repo warning
Update README with centralized layout repo warning
shalako/docs-book-cloudfoundry,swisscom/docs-appcloud-book,shalako/docs-book-cloudfoundry,swisscom/docs-appcloud-book,cloudfoundry/docs-book-cloudfoundry,shalako/docs-book-cloudfoundry,shalako/docs-book-cloudfoundry,cloudfoundry/docs-book-cloudfoundry,swisscom/docs-appcloud-book,swisscom/docs-appcloud-book,cloudfoundry/docs-book-cloudfoundry,cloudfoundry/docs-book-cloudfoundry