Update CHANGELOG

Author: hoppergee

CHANGELOG.md

@@ -5,6 +5,7 @@ Note: For changes to the API, see https://shopify.dev/changelog?filter=api
 ## Unreleased
 
 - [#1002](https://github.com/Shopify/shopify-api-ruby/pull/1002) Add new method to construct the host app URL for an embedded app, allowing for safer redirect to app inside appropriate shop admin
+- [#1004](https://github.com/Shopify/shopify-api-ruby/pull/1004) Support full URL and schemeless URL when register HTTP webhooks
 
 ## Version 11.0.1