Added license and updated readme (#24)

CONTRIBUTING.md

@@ -0,0 +1,47 @@
+# Contribution guidelines
+
+Contributing to this project should be as easy and transparent as possible, whether it's:
+
+- Reporting a bug
+- Discussing the current state of the code
+- Submitting a fix
+- Proposing new features
+
+## Github is used for everything
+
+Github is used to host code, to track issues and feature requests, as well as accept pull requests.
+
+Pull requests are the best way to propose changes to the codebase.
+
+1. Fork the repo and create your branch from `main`.
+2. If you've changed something, update the documentation.
+3. Make sure your code lints (using `scripts/lint`).
+4. Test you contribution.
+5. Issue that pull request!
+
+## Any contributions you make will be under the MIT Software License
+
+In short, when you submit code changes, your submissions are understood to be under the same [MIT License](http://choosealicense.com/licenses/mit/) that covers the project. Feel free to contact the maintainers if that's a concern.
+
+## Report bugs using Github's [issues](../../issues)
+
+GitHub issues are used to track public bugs.
+Report a bug by [opening a new issue](../../issues/new/choose); it's that easy!
+
+## Write bug reports with detail, background, and sample code
+
+**Great Bug Reports** tend to have:
+
+- A quick summary and/or background
+- Steps to reproduce
+  - Be specific!
+  - Give sample code if you can.
+- What you expected would happen
+- What actually happens
+- Notes (possibly including why you think this might be happening, or stuff you tried that didn't work)
+
+People *love* thorough bug reports. I'm not even kidding.
+
+## License
+
+By contributing, you agree that your contributions will be licensed under its MIT License.

LICENSE.txt

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 - 2023  Patrick Vorgers [email protected]
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -18,6 +18,11 @@
 -->
 
 [![Issues][issues-shield]][issues-url]
+[![GitHub Activity][commits-shield]][commits]
+[![License][license-shield]](LICENSE)
+
+![Project Maintenance][maintenance-shield]
+[![BuyMeCoffee][buymecoffeebadge]][buymecoffee]
 
 <!-- PROJECT LOGO -->
 <br />
@@ -45,6 +50,7 @@ Import historical energy/water data from external datasources into Home Assistan
     <li><a href="#about-the-project">About The Project</a></li>
     <li><a href="#getting-started">Getting Started</a></li>
     <li><a href="#authors">Authors</a></li>
+    <li><a href="#contributions">Contributions</a></li>
     <li><a href="#roadmap">Roadmap</a></li>
     <li><a href="#contact">Contact</a></li>
   </ol>
@@ -231,7 +237,14 @@ Please share scripts or how-to guides if you have built an integration with a ne
 
 * Patrick Vorgers (the Netherlands)
 
-### All other contributors:
+<p align="right">(<a href="#readme-top">back to top</a>)</p>
+
+<!-- Contributions -->
+<a name="contributions"></a>
+## Contributions are welcome!
+
+If you want to contribute to this please read the [Contribution guidelines](CONTRIBUTING.md)
+### All contributors:
 
 * Nick de Wijer (https://github.com/ndewijer)
     * Initial implementation: GreenChoice
@@ -266,5 +279,11 @@ Project Link: [https://github.com/patrickvorgers/Home-Assistant-Import-Energy-Da
 
 <!-- MARKDOWN LINKS & IMAGES -->
 <!-- https://www.markdownguide.org/basic-syntax/#reference-style-links -->
+[buymecoffee]: https://www.buymeacoffee.com/patrickvorgers
+[buymecoffeebadge]: https://www.buymeacoffee.com/assets/img/custom_images/orange_img.png
+[commits-shield]: https://img.shields.io/github/commit-activity/y/patrickvorgers/Home-Assistant-Import-Energy-Data.svg?style=for-the-badge
+[commits]: https://github.com/patrickvorgers/Home-Assistant-Import-Energy-Data/commits/main
 [issues-shield]: https://img.shields.io/github/issues/patrickvorgers/Home-Assistant-Import-Energy-Data.svg?style=for-the-badge
 [issues-url]: https://github.com/patrickvorgers/Home-Assistant-Import-Energy-Data/issues
+[license-shield]: https://img.shields.io/github/license/patrickvorgers/Home-Assistant-Import-Energy-Data.svg?style=for-the-badge
+[maintenance-shield]: https://img.shields.io/badge/maintainer-patrickvorgers-blue.svg?style=for-the-badge