Update CHANGELOG

Author: erickskrauch

CHANGELOG.md

@@ -3,7 +3,17 @@
 All notable changes to `elyby/yii2-tempmail-validator` are documented in this file using the
 [Keep a CHANGELOG](http://keepachangelog.com/) principles.
 
-## 1.0.0 - 2016-05-01
+## 2.0.0 - 2017-10-01
+### Changed
+- Bump minimal PHP version to 7.
+- Switch from `ely/php-tempmailbuster` to [`daveearley/daves-email-validation-tool`](https://github.com/daveearley/Email-Validation-Tool).
+
+### Removed
+- `loader` validator configuration.
+- `storage` validator configuration.
+- `whiteList` validator configuration.
+- `secondaryStorage` validator configuration.
 
+## 1.0.0 - 2016-05-01
 ### Added
-* Initial release
+- Initial release