docs: Notion MCP optimize knowledgebase tip

Author: silentoplayz

docs/tutorials/integrations/mcp-notion.mdx

@@ -280,6 +280,12 @@ First, create a knowledge base with the official Notion MCP documentation. This
     *   Save the content from the [Notion MCP Documentation](https://developers.notion.com/docs/mcp-supported-tools) as a PDF or `.txt` file.
     *   Inside your new knowledge base, click the **+ Add Content** button and upload the file you saved.
 
+:::tip Recommended: Optimize with Jina Reader
+For optimal RAG performance, we recommend converting web documentation into clean Markdown. You can use **[Jina Reader](https://github.com/jina-ai/reader)** (or the hosted `https://r.jina.ai/` API) to strip clutter and format the page specifically for LLMs.
+
+Simply visit `https://r.jina.ai/https://developers.notion.com/docs/mcp-supported-tools`, copy the output, and save it as a `.md` file to upload.
+:::
+
 ![Knowledge Base Content View: Shows the 'Notion MCP Docs' knowledge base with the documentation file successfully uploaded.](/images/mcp-notion/notion-setup-step9.png)
 
 ### Step 2: Create the Custom Model