Merge branch 'master' into v5

src/@ionic-native/plugins/card-io/index.ts

@@ -129,6 +129,12 @@ export interface CardIOResponse {
  * @name Card IO
  * @description
  * @usage
+ * This plug-in exposes card.io credit card scanning.
+ *
+ * **NOTE**: If you would like to actually process a credit card charge, you might be interested in the [PayPal Cordova Plug-in](https://github.com/paypal/PayPal-Cordova-Plugin).
+ *
+ * Requires Cordova plugin: `card.io.cordova.mobilesdk`. For more info, please see the [Card IO plugin docs](https://github.com/card-io/card.io-Cordova-Plugin).
+ *
  * Note: For use with iOS 10 + When building your app with the iOS 10 SDK +, you have to add some info to the info.plist file. This is due to increased security in iOS 10. Go to your app directory and search for the <your app name>Info.plist file. Add the following lines in the main <dict> element.
  * ```xml
  * <key>NSCameraUsageDescription</key>
@@ -150,8 +156,8 @@ export interface CardIOResponse {
  *           requireExpiry: true,
  *           requireCVV: false,
  *           requirePostalCode: false
- *         }
- *         CardIO.scan(options);
+ *         };
+ *         this.cardIO.scan(options);
  *       }
  *     }
  *   );