Add more link styles (#91)

Author: andrewbents

src/types.ts

@@ -832,7 +832,7 @@ export interface WidgetUpsellPromotionalBannerInformationalLinkOptions {
   currency: string
   /** Style object for customisation */
   style?: {
-    text?: 'learn_more' | 'cashback'
+    text?: 'learn_more' | 'cashback' | 'get_discounts' | 'earn_as_customer'
     color?: 'blue' | 'black'
   }
 }