Add a changelog entry

Author: arybolovlev

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## Enhancements
 
 * Adds `DefaultProject` to `OrganizationUpdateOptions` to support updating an organization's default project. This provides BETA support, which is EXPERIMENTAL, SUBJECT TO CHANGE, and may not be available to all users, by @mkam [#1056](https://github.com/hashicorp/go-tfe/pull/1056)
+* Adds a new method `ListForOrganization` to list Runs in an organization by @arybolovlev [#1059](https://github.com/hashicorp/go-tfe/pull/1059)
 
 ## Bug fixes