docs: add contribution section on index page

docs/docs/index.md

@@ -11,7 +11,7 @@ sidebar_position: 0
 
 **Connection library for the Soundcraft Ui series mixers (Ui12, Ui16 and Ui24R), written in TypeScript/JavaScript**
 
-This library provides a generic connection interface for for Soundcraft Ui mixers.
+This library provides a generic connection interface for Soundcraft Ui mixers.
 It can be used in Node.js or in the browser to control most of the mixer's features without using the built-in web app.
 
 ## Installation
@@ -22,8 +22,17 @@ npm i soundcraft-ui-connection
 
 ## Names and trademark
 
-This project is **not** associated with Soundcraft. It is an open-source community project without any connection to the companies who develop, produce and sell the mixer.
-All trademark and names are property of their respective owners.
+This project is **not** associated with Soundcraft. It is an open-source community project with no connection to the companies that develop, produce, and sell the mixer.
+All trademark and names are the property of their respective owners.
+
+## Contributing
+
+This library is open-source, and contributions are welcome! Although tested thoroughly, this software likely contains bugs and does not cover all aspects of the mixer yet. You can help by reporting bugs or requesting features through [GitHub Issues](https://github.com/fmalcher/soundcraft-ui/issues). Even better, create a [Pull Request](https://github.com/fmalcher/soundcraft-ui/pulls) with a bug fix or feature implementation. If you are unsure about how to proceed, let's talk!
+
+I create this library in my free time and without any financial compensation other than sponsorship.
+**If you like my work, please consider buying me a coffee through [GitHub Sponsors](https://github.com/sponsors/fmalcher).**
+
+Every help is highly appreciated! And if you want to show me your setup or share your thoughts about this library, my email inbox is open for you: [[email protected]](mailto:[email protected]).
 
 ## License