Update CHANGELOG.md

Co-Authored-By: Morgante Pell <[email protected]>

Author: pksmall

CHANGELOG.md

@@ -11,7 +11,7 @@ project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Fixed
 
-- `distribution_policy_zones` ignoring [#37]
+- Fix bug with `distribution_policy_zones` forcing permadiff. [#37]
 
 ## [1.1.0] - 2019-10-23
 
@@ -53,4 +53,4 @@ project adheres to [Semantic Versioning](http://semver.org/).
 [#16]: https://github.com/terraform-google-modules/terraform-google-vm/pull/16
 [#18]: https://github.com/terraform-google-modules/terraform-google-vm/pull/18
 [#26]: https://github.com/terraform-google-modules/terraform-google-vm/pull/26
-[#37]: https://github.com/terraform-google-modules/terraform-google-vm/pull/37
+[#37]: https://github.com/terraform-google-modules/terraform-google-vm/pull/37