Add CHANGELOG link to #163

Author: aaron-lane

CHANGELOG.md

@@ -132,6 +132,7 @@ Extending the adopted spec, each change should have a link to its corresponding
 [v0.3.0]: https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/compare/v0.2.0...v0.3.0
 [v0.2.0]: https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/compare/v0.1.0...v0.2.0
 
+[#163]: https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/pull/163
 [#160]: https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/pull/160
 [#159]: https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/pull/159
 [#157]: https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/pull/157