doc(docs): add contributing section

docs/index.md

@@ -114,6 +114,11 @@ ModelCatalog().tool_test_run("slim-sentiment-tool")
 
 `llmware` is © 2023-{{ "now" | date: "%Y" }} by [AI Bloks](https://www.aibloks.com/home).
 
+## Contributing
+Please first discuss any change you want to make publicly, for example on GitHub via raising an [issue](https://github.com/llmware-ai/llmware/issues) or starting a [new discussion on GitHub](https://github.com/llmware-ai/llmware/discussions).
+You can also write an email or start a discussion on our Discrod channel.
+Read more about becoming a contributor in the [GitHub repo](https://github.com/llmware-ai/llmware/blob/main/CONTRIBUTING.md).
+
 ## ``llmware`` and [AI Bloks](https://www.aibloks.com/home)
 ``llmware`` is an open source project from [AI Bloks](https://www.aibloks.com/home).
 [AI Bloks](https://www.aibloks.com/home) is the company behind ``llmware``, which offers a Software as a Service (SaaS) Retrieval Augmented Generation (RAG) service with the same name.