docs: quick explanation and message to sponsors

README.md

@@ -2,6 +2,36 @@
 
 Rust integrated Dart framework providing an easy way to build Flutter apps with Rust.
 
+## Welcome to Rid
+
+This is the repository in which [_rid_](https://thlorenz.com/rid) development takes place. It contains all the
+necessary crates to generate code from macro attributes.
+
+`rid-build` to pull it all together and `rid-template-flutter` is here for now to get started with an app quickly until I build a `rid`
+CLI tool which combines the two.
+
+_rid_ documentation will always live on the [main docs
+section](https://thlorenz.com/rid-site/docs/getting-started/introduction/).
+
+## Sponsors
+
+Thank you very much for sponsoring me to help me keep working on _rid_ as well as open source
+it fully as [explained here](https://thlorenz.com/rid-site/docs/contributing/sponsor/).
+
+Feel free to ask any questions.
+
+I just have one favor to ask from you. **Please do not fork this repository yet nor make it, or
+contained code available publicly** as that would defeat the
+[Sponsorware](https://github.com/sponsorware/docs) approach I chose to make _rid_ development
+sustainable.
+
+Additionally in order to keep the repository private yet allow sponsors to access it, I invite
+them as collaborators. Please respect however that I expect you to **only read or use the
+code**, but not push any updates to the repository. Any contribution should be [provided via a
+pull request](https://thlorenz.com/rid-site/docs/contributing/how-to-contribute/).
+
+A huge thanks for your support! 🙏 ❤️
+
 # LICENSE
 
 MIT