Update README.md

Author: hebertcisco

README.md

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- <img width="100px" src="https://raw.githubusercontent.com/hebertcisco/vercel-typescript-express-api/cebd0c563141a4cc7d279997b8cb5dd9232d7591/.github/images/favicon512x512-vercel-typescript-express-api.png" align="center" alt=":package: deploy-python-fastapi-in-vercel" />
+ <img width="100px" src="https://upload.wikimedia.org/wikipedia/commons/5/5e/Vercel_logo_black.svg" align="center" alt=":package: deploy-python-fastapi-in-vercel" />
  <h2 align="center">:package: deploy-python-fastapi-in-vercel</h2>
  <p align="center">This example shows how to use FastApi  on Vercel with Serverless Functions using the Python Runtime.</p>
 </p>