chore: release 3.1.0 (#78)

* updated CHANGELOG.md [ci skip]

* updated README.md [ci skip]

Author: cloud-foundation-bot

CHANGELOG.md

@@ -4,6 +4,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [3.1.0](https://www.github.com/terraform-google-modules/terraform-google-lb-http/compare/v3.0.0...v3.1.0) (2020-01-28)
+
+
+### Features
+
+* Allow 3.x google provider ([#77](https://www.github.com/terraform-google-modules/terraform-google-lb-http/issues/77)) ([650d639](https://www.github.com/terraform-google-modules/terraform-google-lb-http/commit/650d639beba895dabbaeb312090d013fde9a68bd))
+
 ## [Unreleased]
 ### Changed
 - Add support for google provider version 3.x [#77]