Update Changelog

Author: ahx

CHANGELOG.md

@@ -5,7 +5,11 @@
 - Breaking: Trailing slashes are no longer ignored in dynamic paths. See [#403](https://github.com/ahx/openapi_first/issues/403).
 - Remove superflous `Test::Coverage.current_run, .plans, .install, .uninstall`
 - Update dependency `openapi_paramters` to >= 0.7.0, because that version fixes unpacking exploded deepObject paramters
-- Add `OpenapiFirst.register`
+- Add support to register OADs globally via:
+  ```ruby
+  OpenapiFirst.configure { |config| config.register('openapi.yaml')  }
+  ```
+  This removes the necessity to load the OAD in the same place where you use the middlewares and adds a cache for parsed OADs.
 - Add `OpenapiFirst::Test::Configuration#ignore_unknown_response_status=`. When this is set to true, it won't complain about undefined response statuses it sees during a test run. Use with caution.
 - Failure type `:response_not_found` was split into two more specific types `:response_content_type_not_found` and `:response_status_not_found`. This should be mostly internal stuff.