Update README.md

Author: rejojer

README.md

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 <div align="center">
   <a href="https://pageindex.ai/mcp">
-    <img src="https://docs.pageindex.ai/images/cookbook/vectorless-rag.png" width="80%">
+    <img src="https://docs.pageindex.ai/images/general/mcp_banner.jpg">
   </a>
 </div>
 
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 ## What is PageIndex?
 
+<div align="center">
+  <a href="https://pageindex.ai/mcp">
+    <img src="https://docs.pageindex.ai/images/cookbook/vectorless-rag.png" width="80%">
+  </a>
+</div>
+
 PageIndex is a revolutionary document processing system that uses **reasoning-based RAG** instead of traditional vector-based similarity search. Unlike conventional RAG systems that rely on semantic similarity, PageIndex uses multi-step reasoning and tree search to retrieve information like a human expert would.
 
 ### Key Advantages over Vector-based RAG