diff --git a/packages/polymech/src/model/merchant.ts b/packages/polymech/src/model/merchant.ts
index ca0a4b6..e18bd0c 100644
--- a/packages/polymech/src/model/merchant.ts
+++ b/packages/polymech/src/model/merchant.ts
@@ -29,3 +29,8 @@ export const get = async (node: IComponentNode, config: IComponentConfig, opts:
     }
     return product
 }
+
+/*
+https://support.google.com/merchants/answer/12631822?hl=en-GB
+https://developers.google.com/merchant/api/guides/quickstart/overview
+*/
\ No newline at end of file