TASK | Add changelog

Author: j6s

CHANGELOG.md

@@ -0,0 +1,17 @@
+# Changelog
+
+* [CHANGELOG](./CHANGELOG.md)
+* [LICENSE](./LICENSE)
+* [README](./README.md)
+* [CONTRIBUTING](./CONTRIBUTING.md)
+
+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).
+
+## [1.1.0] - 2020-09-05
+### Added
+* Meta information about the mailcow API requests
+* Container information
+* Help texts

CONTRIBUTING.md

@@ -1,10 +1,18 @@
 # Contribution Guidelines
 
+* [CHANGELOG](./CHANGELOG.md)
+* [LICENSE](./LICENSE)
+* [README](./README.md)
+* [CONTRIBUTING](./CONTRIBUTING.md)
+
 Contributions are always welcome - just open an issue or PR.
 Please be aware that even though it may not seem like it there are always other humans on the other end of a conversation.
 
 **Please treat others with respect and kindness.**
 
+If you have general questions or suggestions for improvement, open an issue or
+[hit me up on twitter](https://twitter.com/thej6s)
+
 ## Adding a new Provider
 
 The basic architecture of the exporter is centered around a provider. A provider is a struct

README.md

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 # mailcow exporter
 
+* [CHANGELOG](./CHANGELOG.md)
+* [LICENSE](./LICENSE)
+* [README](./README.md)
+* [CONTRIBUTING](./CONTRIBUTING.md)
+
 [Prometheus](https://prometheus.io) exporter for information about a
 [mailcow](https://github.com/mailcow/mailcow-dockerized) instance.