Docs about adding new tools

[mameshini]

Can you please provide some additional details about how to add new tools? I can commit to testing it out and writing a nice Readme about it.

• What is the best way to add a new data_provider tool?
• How to add RAG search tool that retrieves documents from a knowledge base and returns 1-20 document chunks with sources: text, doc titles and URLs? I already have RAG search (Knowledge Base search) implementation, just need to add it as an extra tool available in the tool calling loop. Maintain this workflow order: kb-search → web-search → scrape-webpage → direct browser tools (if needed)
• How to add an API that performs actions, such as create IT ticket in ServiceNow.