message: Use target=_blank on MissingAnnotation Read More link
  I would like Backstage to stay open so I can continue to work with it
  while I read the docs.
diff: @@ -76,6 +76,8 @@ export const MissingAnnotationEmptyState = ({ annotation }: Props) => {
  variant="contained"
  color="primary"
  href="https://backstage.io/docs/features/software-catalog/well-known-annotations"
  + target="_blank"
  + rel="noopener noreferrer"
  >
  Read more
  </Button>
  