Improvement simple rag tool (#240)

add description to README.md file

Author: anthonydevs17

packages/tools/README.md

@@ -23,21 +23,22 @@ npm install @kaibanjs/tools
 
 Here's a list of all available tools. Click on the tool names to view their detailed documentation.
 
-| Tool             | Description                                                            | Documentation                                |
-| ---------------- | ---------------------------------------------------------------------- | -------------------------------------------- |
-| Exa              | AI-focused search engine using embeddings to organize web data         | [README](src/exa/README.md)                  |
-| Firecrawl        | Web scraping service for extracting structured data                    | [README](src/firecrawl/README.md)            |
-| GitHub Issues    | GitHub API integration for fetching and analyzing repository issues    | [README](src/github-issues/README.md)        |
-| Jina URL to MD   | Convert web content into clean, LLM-ready markdown using Jina.ai       | [README](src/jina-url-to-markdown/README.md) |
-| PDF Search       | Extract and search content from PDF documents                          | [README](src/pdf-search/README.md)           |
-| Serper           | Google Search API integration with support for multiple search types   | [README](src/serper/README.md)               |
-| Simple RAG       | Basic Retrieval-Augmented Generation implementation for Q&A            | [README](src/simple-rag/README.md)           |
-| Tavily Search    | AI-optimized search engine for comprehensive and accurate results      | [README](src/tavily/README.md)               |
-| Text File Search | Search and analyze content within text files                           | [README](src/textfile-search/README.md)      |
-| Website Search   | Semantic search within website content using RAG models                | [README](src/website-search/README.md)       |
-| WolframAlpha     | Computational intelligence engine for complex queries and calculations | [README](src/wolfram-alpha/README.md)        |
-| Zapier Webhook   | Integration with Zapier for workflow automation                        | [README](src/zapier-webhook/README.md)       |
-| Make Webhook     | Integration with Make (formerly Integromat) for workflow automation    | [README](src/make-webhook/README.md)         |
+| Tool                | Description                                                                     | Documentation                                |
+| ------------------- | ------------------------------------------------------------------------------- | -------------------------------------------- |
+| Exa                 | AI-focused search engine using embeddings to organize web data                  | [README](src/exa/README.md)                  |
+| Firecrawl           | Web scraping service for extracting structured data                             | [README](src/firecrawl/README.md)            |
+| GitHub Issues       | GitHub API integration for fetching and analyzing repository issues             | [README](src/github-issues/README.md)        |
+| Jina URL to MD      | Convert web content into clean, LLM-ready markdown using Jina.ai                | [README](src/jina-url-to-markdown/README.md) |
+| PDF Search          | Extract and search content from PDF documents                                   | [README](src/pdf-search/README.md)           |
+| Serper              | Google Search API integration with support for multiple search types            | [README](src/serper/README.md)               |
+| Simple RAG          | Basic Retrieval-Augmented Generation implementation for Q&A                     | [README](src/simple-rag/README.md)           |
+| Tavily Search       | AI-optimized search engine for comprehensive and accurate results               | [README](src/tavily/README.md)               |
+| Text File Search    | Search and analyze content within text files                                    | [README](src/textfile-search/README.md)      |
+| Website Search      | Semantic search within website content using RAG models                         | [README](src/website-search/README.md)       |
+| WolframAlpha        | Computational intelligence engine for complex queries and calculations          | [README](src/wolfram-alpha/README.md)        |
+| Zapier Webhook      | Integration with Zapier for workflow automation                                 | [README](src/zapier-webhook/README.md)       |
+| Make Webhook        | Integration with Make (formerly Integromat) for workflow automation             | [README](src/make-webhook/README.md)         |
+| Simple RAG Retrieve | Basic Retrieval-Augmented Generation implementation for Q&A with preloaded data | [README](src/simple-rag-retrieve/README.md)  |
 
 ## Development