Merge pull request #481 from elbwalker/mapping-docs

Update google-ga4.mdx

website/docs/destinations/google-ga4.mdx

@@ -145,15 +145,31 @@ override `include` values with the same key.
 
 ## Mapping
 
-The `mapping` examples are using the
+You are able to map your walkerOS events to match the respective requirements of
+each vendor. The `mapping` examples are using a
 live&nbsp;<Link to="#configuration">configuration</Link>.
 
+:::tip
+
+The code examples are interactive. You can edit the code to generate your
+individual event mapping.
+
+:::
+
 ### add_to_cart
 
+Map your custom walkerOS event to get
+an&nbsp;<Link to="https://developers.google.com/analytics/devguides/collection/ga4/reference/events?sjid=10736118709897970414-EU&client_type=gtag#add_to_cart">add_to_cart
+gtag.js event</Link>.
+
 <GoogleGA4ProductAdd />
 
 ### purchase
 
+Map your custom walkerOS event to get
+a&nbsp;<Link to="https://developers.google.com/analytics/devguides/collection/ga4/reference/events?sjid=10736118709897970414-EU&client_type=gtag#purchase">purchase
+gtag.js event</Link>.
+
 <GoogleGA4OrderComplete />
 
 :::info