Update CHANGELOG.md

CHANGELOG.md

@@ -50,6 +50,7 @@ ENHANCEMENTS:
 * compute: `google_compute_forwarding_rule` supports specifying `all_ports` for internal load balancing. ([`google-beta`#297](https://github.com/terraform-providers/terraform-provider-google-beta/pull/297))
 * compute: `google_compute_image` is now autogenerated and supports multiple import formats, and `size_gb` attribute. [GH-2769]
 * compute: `google_compute_url_map` resource is now autogenerated and supports multiple import formats. [GH-2245]
+* compute: Add `name`, `unique_id`, and `display_name` properties to `data.google_compute_default_service_account` [GH-2778]
 * dataproc: Add `accelerators` support to `google_dataproc_cluster` to allow using GPU accelerators. [GH-2411]
 * project: The google_iam_policy data source now supports Audit Configs [GH-2687]
 * kms: Add support for `protection_level` to `google_kms_crypto_key` [GH-2751]