message: Reword personalized sentence
diff: @@ -111,8 +111,7 @@ catalog:
  > deleting entities will not work in this mode.**
  A common use case for this configuration is when organizations have a remote
  -source that should be mirrored into backstage. If we want backstage to be a
  -mirror of this remote source we cannot allow users to also register entities
  -with e.g.
  +source that should be mirrored into Backstage. To make Backstage a mirror of
  +this remote source, users cannot also register new entities with e.g. the
  [catalog-import](https://github.com/backstage/backstage/tree/master/plugins/catalog-import)
  plugin.
  