implemented review feedback

Co-authored-by: davidhou17 <[email protected]>

docs/resources/online_archive.md

@@ -8,7 +8,7 @@
 
 ~> **IMPORTANT:** There are fields that are immutable after creation, i.e if `date_field` value does not exist in the collection, the online archive state will be pending forever, and this field cannot be updated, that means a destroy is required, known error `ONLINE_ARCHIVE_CANNOT_MODIFY_FIELD`
 
-~> **IMPORTANT:** Support for Online Archive on `GCP` is available in Private Preview. To request access and participate in the Private Preview release of this feature, see the [registration sign-up](https://www.mongodb.com/products/platform/atlas-online-archive#promo).
+~> **IMPORTANT:** Support for Online Archive on `GCP` is available in Private Preview. To request access and participate in the Private Preview release of this feature, complete the [sign-up form](https://www.mongodb.com/products/platform/atlas-online-archive#promo).
 
 ## Example Usages
 ```terraform