Merge pull request #490 from rimusz/update-using-docker-images-md

docs(update): using-docker-images.md

Author: rimusz

src/applications/using-docker-images.md

@@ -80,7 +80,7 @@ deis registry:set username=_json_key password="$(cat google_cloud_cred.json | jq
 
 When using a private registry the docker images are no longer pulled into the Deis Internal Registry via
 the Deis Workflow Controller but rather is managed by Kubernetes. This will increase security and overall speed,
-however the `port` information can no longer be discovered. Instead the `port` information can be set via
+however the application `port` information can no longer be discovered. Instead the application `port` information can be set via
 `deis config:set PORT=80` prior to setting the registry information.
 
 !!! note