doc: update textin mcp describe

Author: wangchenran

README.md

@@ -128,7 +128,7 @@ Official integrations are maintained by companies building production ready MCP
 - <img height="12" width="12" src="https://tavily.com/favicon.ico" alt="Tavily Logo" /> **[Tavily](https://github.com/tavily-ai/tavily-mcp)** - Search engine for AI agents (search + extract) powered by [Tavily](https://tavily.com/)
 - <img height="12" width="12" src="https://thirdweb.com/favicon.ico" alt="Thirdweb Logo" /> **[Thirdweb](https://github.com/thirdweb-dev/ai/tree/main/python/thirdweb-mcp)** - Read/write to over 2k blockchains, enabling data querying, contract analysis/deployment, and transaction execution, powered by [Thirdweb](https://thirdweb.com/)
 - <img height="12" width="12" src="https://www.tinybird.co/favicon.ico" alt="Tinybird Logo" /> **[Tinybird](https://github.com/tinybirdco/mcp-tinybird)** - Interact with Tinybird serverless ClickHouse platform
-- <img height="12" width="12" src="https://www.textin.com/favicon.png" alt="TextIn Logo" /> **[TextIn](https://github.com/intsig-textin/textin-mcp)** - An MCP server for the [TextIn](https://www.textin.com/) API, it extracts text from documents and converts it to Markdown or text
+- <img height="12" width="12" src="https://www.textin.com/favicon.png" alt="TextIn Logo" /> **[TextIn](https://github.com/intsig-textin/textin-mcp)** - An MCP server for the [TextIn](https://www.textin.com/?from=github_mcp) API, is a tool for extracting text and performing OCR on documents, it also supports converting documents into Markdown
 - <img height="12" width="12" src="https://unifai.network/favicon.ico" alt="UnifAI Logo" /> **[UnifAI](https://github.com/unifai-network/unifai-mcp-server)** - Dynamically search and call tools using [UnifAI Network](https://unifai.network)
 - <img height="12" width="12" src="https://framerusercontent.com/images/plcQevjrOYnyriuGw90NfQBPoQ.jpg" alt="Unstructured Logo" /> **[Unstructured](https://github.com/Unstructured-IO/UNS-MCP)** - Set up and interact with your unstructured data processing workflows in [Unstructured Platform](https://unstructured.io)
 - **[Vectorize](https://github.com/vectorize-io/vectorize-mcp-server/)** - [Vectorize](https://vectorize.io) MCP server for advanced retrieval, Private Deep Research, Anything-to-Markdown file extraction and text chunking.