Update tutorial (#1099)

(cherry picked from commit c1f8a79)

Author: deliahu

examples/sklearn/iris-classifier/README.md

@@ -177,17 +177,27 @@ Cortex can automatically provision infrastructure on your AWS account and deploy
 $ cortex cluster up
 ```
 
-You can deploy the model using the same code and configuration to your cluster:
+This creates a Cortex cluster in your AWS account, and will take approximately 15 minutes. Additional information about your cluster is shown on the command line.
+
+After your cluster is created, you can deploy your model to your cluster by using the same code and configuration as before:
 
 ```bash
 $ cortex deploy --env aws
 
 creating iris-classifier
 ```
 
-<br>
+You can then get your API's endpoint (along with other useful information about your API) using the `cortex get` command:
+
+```bash
+$ cortex get iris-classifier --env aws
+
+...
+endpoint: http://***.amazonaws.com/iris-classifier
+...
+```
 
-## Serve predictions in production
+Then, to make requests to your prediction API on AWS:
 
 ```bash
 $ curl http://***.amazonaws.com/iris-classifier \