message: [Improvement] CouponList: support v-model & exchangeButtonLoading
diff: @@ -79,10 +79,12 @@ export default {
  | Attribute | Description | Type | Default | Accepted Values |
  |-----------|-----------|-----------|-------------|-------------|
  +| v-model | Current exchange code | `String` | - | - |
  | chosen-coupon | Index of chosen coupon | `Number` | `-1` | - |
  | coupons | Coupon list | `Array` | `[]` | - |
  | disabled-coupons | Disabled voupon list | `Array` | `[]` | - |
  | exchange-button-text | Exchange button text | `String` | `Exchange` | - |
  +| exchange-button-loading | Whether to show loading in exchange button | `Boolean` | `false` | - |
  | exchange-button-disabled | Whether to disable exchange button | `Boolean` | `false` | - |
  | exchange-min-length | Min length to enable exchange button | `Number` | `1` | - |
  | displayed-coupon-index | Index of displayed coupon | `Number` | - | - |
  