Add Requestly as sponsor

README.md

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     <p align="center"><a href="https://companyenrich.com?ref=dr-pa&utm_medium=public-apis-repo-readme">CompanyEnrich</a>: Access exclusive company data of local and global businesses. Power your products, agentic workflows, and sales operations with fresh, instant company data APIs.</p>
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+    <p align="center"><a href="https://requestly.com?ref=dr-pa&utm_medium=public-apis-repo-readme"><picture><source media="(prefers-color-scheme: dark)" srcset="./assets/requestly-dark-mode.png" width="160px"><source media="(prefers-color-scheme: light)" srcset="./assets/requestly-light-mode.png" width="160px"><img alt="Requestly logo" src="./assets/requestly-dark-mode.png" width="160px"></picture></a></p>
+    <p align="center"><a href="https://requestly.com?ref=dr-pa&utm_medium=public-apis-repo-readme">Requestly</a>: Build and test APIs faster. Lightweight Git-friendly API client built for modern developers.</p>
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