Add CHANGELOG.md

The old CHANGELOG followed the style of an RPM spec file. We now adhere
to [keepachangelog][1]

[1]: https://keepachangelog.com/en/1.0.0/

Author: stschulte

CHANGELOG

@@ -0,0 +1,23 @@
+# Changelog
+
+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).
+
+## [Unreleased]
+
+### Added
+
+- Support RHEL8 and CentOS 8
+- Add version requirement in `metadata.json` (`>= 6.21.0 < 9.0.0`)
+
+### Changed
+
+- Update structure to work with latest puppet version
+
+## [1.0.0] - 2015-01-22
+
+### Added
+
+- Initial release for puppet forge

CHANGELOG.md

@@ -18,6 +18,12 @@
       "operatingsystemrelease": ["5.10", "5.11", "11"]
     }
   ],
+  "requirements": [
+    {
+      "name": "puppet",
+      "version_requirement": ">= 6.21.0 < 9.0.0"
+    }
+  ],
   "tags": ["oracle", "oratab"],
   "pdk-version": "3.1.0",
   "template-url": "https://github.com/puppetlabs/pdk-templates#3.1.0",