Add changelog and prepare for 0.3.0 release

CHANGELOG.md

@@ -0,0 +1,30 @@
+# Change log
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
+
+## [0.3.0] - 2020-10-25
+
+### Added
+
+- Added the possibility to authenticate against Hydra Admin API using OAuth2.0 client credentials.
+
+## [0.2.0] - 2020-10-01
+
+This release is mainly about publishing the provider to the Terraform Registry and improving documentation.
+
+### Added
+
+- The provider is now available in the [Terraform Registry](https://registry.terraform.io/providers/hypnoglow/oryhydra/latest).
+
+## [0.1.1] - 2020-06-10
+
+### Fixed
+
+- Fixed handling non-existing OAuth2 Clients in the provider.
+
+## [0.1.0] - 2020-06-08
+
+Initial release.

README.md

@@ -15,7 +15,7 @@ terraform {
   required_providers {
     oryhydra = {
       source = "hypnoglow/oryhydra"
-      version = "0.2.0"
+      version = "0.3.0"
     }
   }
 }