fix link to fields header

Author: kculala

guides/How-To/commerce-extensions/create-a-multilocation-inventories-resource.md

@@ -164,7 +164,7 @@ Notice the following:
 
 ## Update Custom API Entries
 
-Recall that [earlier](/guides/How-To/commerce-extensions/create-a-multilocation-inventories-resource#create-custom-field---slug) when you created the Custom Field `sku` that you marked it for `use_as_url_slug`. This allows you to access a Custom API Entry by the value that is stored in that Custom Field for that record rather than having to:
+Recall that [earlier](/guides/How-To/commerce-extensions/create-a-multilocation-inventories-resource#create-custom-field---sku) when you created the Custom Field `sku` that you marked it for `use_as_url_slug`. This allows you to access a Custom API Entry by the value that is stored in that Custom Field for that record rather than having to:
 
 1. Filter for that record.
 2. Save the `data.id` attribute for that record.
@@ -184,7 +184,7 @@ curl -X PUT "https://useast.api.elasticpath.com/v2/extensions/location-inventori
     }
 ```
 
-Notice that the resource identifier in the request above is one that should be well-known to you and your processes and not a random UUID generated by the platform `/v2/extensions/location-inventories/:customApiEntryId`. [Earlier](/guides/How-To/commerce-extensions/create-a-multilocation-inventories-resource#create-custom-field---slug) you made `sku` unique and case-insensive, so requests using a value like `tbl-din-6Wd-oak-0034` and similar varations using different casing will update, retrieve and potentially delete the same resource.
+Notice that the resource identifier in the request above is one that should be well-known to you and your processes and not a random UUID generated by the platform `/v2/extensions/location-inventories/:customApiEntryId`. [Earlier](/guides/How-To/commerce-extensions/create-a-multilocation-inventories-resource#create-custom-field---sku) you made `sku` unique and case-insensive, so requests using a value like `tbl-din-6Wd-oak-0034` and similar varations using different casing will update, retrieve and potentially delete the same resource.
 
 ## Conditional Updates