8.md - change screenshot for network-device

Screenshot needs to reflect proper link for sandbox.

Author: LaurenMalhoit

labs/coding-101-rest-basics-ga/8.md

@@ -23,7 +23,7 @@ For details about the Get Network Device API, consult the [APIC-EM API Docs](htt
 3. Click **Send**.
 4. Postman sends the request to the server and displays the **Response Code**, `200 OK`, in **Status**. **JSON** contains the list of hosts that was returned.
 
-The output should look similar to the example. For display purposes, some records have been removed.
+The output should look similar to the example in this screenshot. For display purposes, some records have been removed.
 
 ![](/posts/files/coding-101-rest-basics-ga/assets/images/postman7.png "Response")