Fix JSON issue in example block

docs/api/structures/printer-info.md

@@ -8,12 +8,16 @@
 
 ## Example
 
+Below is an example of some of the additional options that may be set which
+may be different on each platform.
+
 ```javascript
-name: 'Zebra_LP2844',
-description: 'Zebra LP2844',
-status: 3,
-isDefault: false,
-options: {
+{
+  name: 'Zebra_LP2844',
+  description: 'Zebra LP2844',
+  status: 3,
+  isDefault: false,
+  options: {
     copies: '1',
     'device-uri': 'usb://Zebra/LP2844?location=14200000',
     finishings: '3',
@@ -35,6 +39,6 @@ options: {
     'printer-type': '36932',
     'printer-uri-supported': 'ipp://localhost/printers/Zebra_LP2844',
     system_driverinfo: 'Z'
+  }
 }
-}]
 ```