Update contributing guidelines

Author: daniel-jones-dev

Diff for: CHANGELOG.md

@@ -5,6 +5,11 @@ 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]
+### Changed
+* Update contributing guidelines, we can now accept Pull Requests.
+
+
 ## [1.2.0] - 2022-05-18
 ### Added
 * New languages available: Indonesian (`'id'`) and Turkish (`'tr'`). Add
@@ -71,6 +76,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 Initial release.
 
 
+[Unreleased]: https://github.com/DeepLcom/deepl-dotnet/compare/v1.2.0..HEAD
 [1.2.0]: https://github.com/DeepLcom/deepl-dotnet/compare/v1.1.0..v1.2.0
 [1.1.0]: https://github.com/DeepLcom/deepl-dotnet/compare/v1.0.5..v1.1.0
 [1.0.5]: https://github.com/DeepLcom/deepl-dotnet/compare/v1.0.4..v1.0.5

Diff for: CONTRIBUTING.md

@@ -1,4 +1,37 @@
-# Contribution guidelines
+# Contributing guidelines
 
-We are currently unable to accept Pull Requests. If you would like to suggest changes, please open an
-[issue](https://github.com/DeepLcom/deepl-dotnet/issues) instead.
+* [Code of Conduct](#code-of-conduct)
+* [Issues](#issues)
+* [Pull Requests](#pull-requests)
+
+## Code of Conduct
+
+This project has a [Code of Conduct](CODE_OF_CONDUCT.md) to which all
+contributors must adhere when participating in the project. Instances of
+abusive, harassing, or otherwise unacceptable behavior may be reported by
+contacting [open-source@deepl.com](mailto:open-source@deepl.com) and/or a
+project maintainer.
+
+## Issues
+
+If you experience problems using the library, or would like to request a new
+feature, please open an [issue][issues].
+
+Please provide as much context as possible when you open an issue. The
+information you provide must be comprehensive enough for us to reproduce the
+issue.
+
+## Pull Requests
+
+You are welcome to contribute code and/or documentation in order to fix a bug or
+to implement a new feature. Before beginning work, you should create an issue
+describing the changes you plan to contribute, to avoid wasting or duplicating
+effort. We will then let you know whether we would accept the changes.
+
+Contributions must be licensed under the same license as the project:
+[MIT License](LICENSE).
+
+Currently automated testing is implemented internally at DeepL, however we plan
+to implement publicly visible testing soon.
+
+[issues]: https://www.github.com/DeepLcom/deepl-dotnet/issues

Diff for: README.md

@@ -225,11 +225,11 @@ var translator = new Translator(authKey, options);
 ## Issues
 
 If you experience problems using the library, or would like to request a new feature, please open an
-[issue](https://www.github.com/DeepLcom/deepl-dotnet/issues).
+[issue][issues].
 
 ## Development
 
-We are currently unable to accept Pull Requests. If you would like to suggest changes, please open an issue instead.
+We welcome Pull Requests, please read the [contributing guidelines](CONTRIBUTING.md).
 
 ### Tests
 
@@ -244,3 +244,5 @@ only with the DeepL API or the mock-server and will be otherwise skipped. The te
 trigger server errors and test the client error-handling. To execute the tests using deepl-mock, run it in another
 terminal while executing the tests. Execute the tests using `dotnet test` with the `DEEPL_MOCK_SERVER_PORT` and
 `DEEPL_SERVER_URL` environment variables defined referring to the mock-server.
+
+[issues]: https://www.github.com/DeepLcom/deepl-dotnet/issues