message: Add image as a markdown image
diff: @@ -2715,7 +2715,8 @@ def create_local_cluster(num_workers,
  Read more at https://www.tensorflow.org/guide/extend/architecture
  - TODO: image from https://www.tensorflow.org/images/diag1.svg
  + ![components](https://www.tensorflow.org/images/diag1.svg "components")
  +
  Figure illustrates the interaction of these components.
  "/job:worker/task:0" and "/job:ps/task:0" are both tasks with worker services.
  