From 5f9873574e8895f1e706a619988dd39fd11d3c4d Mon Sep 17 00:00:00 2001
From: David Schott <schottdb@gmail.com>
Date: Sun, 1 Apr 2018 16:06:42 -0400
Subject: [PATCH] Update 13-smoke-test.md

Changed:

```
curl -I http://${EXTERNAL_IP}:${NODE_PORT}
```

To:

```
curl -I http://$EXTERNAL_IP:$NODE_PORT
```

The original command does not work on OSX.
---
 docs/13-smoke-test.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/13-smoke-test.md b/docs/13-smoke-test.md
index 7e91805..b8a7838 100644
--- a/docs/13-smoke-test.md
+++ b/docs/13-smoke-test.md
@@ -187,7 +187,7 @@ EXTERNAL_IP=$(gcloud compute instances describe worker-0 \
 Make an HTTP request using the external IP address and the `nginx` node port:
 
 ```
-curl -I http://${EXTERNAL_IP}:${NODE_PORT}
+curl -I http://$EXTERNAL_IP:$NODE_PORT
 ```
 
 > output