Updated README.md header

Author: irn77

README.md

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 <p align="center"><a href="https://github.com/tadata-org/fastapi_mcp"><img src="https://github.com/user-attachments/assets/7e44e98b-a0ba-4aff-a68a-4ffee3a6189c" alt="fastapi-to-mcp" height=100/></a></p>
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+<div align="center">
+  <span style="font-size: 0.85em; font-weight: normal;">Built by <a href="https://tadata.com">Tadata</a></span>
+</div>
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 <h1 align="center">
   FastAPI-MCP
-  <br>
-  <span style="font-size: 0.65em; font-weight: normal;">Built by <a href="https://tadata.com">Tadata</a></span>
-</h1><p align="center">Expose your FastAPI endpoints as Model Context Protocol (MCP) tools, with Auth!</p>
+</h1>
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+<p align="center">Expose your FastAPI endpoints as Model Context Protocol (MCP) tools, with Auth!</p>
 <div align="center">
 
 [![PyPI version](https://img.shields.io/pypi/v/fastapi-mcp?color=%2334D058&label=pypi%20package)](https://pypi.org/project/fastapi-mcp/)