Update README.md

Author: AugustOxy

README.md

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 # Rotating Proxies With Python
 [<img src="https://img.shields.io/static/v1?label=&message=Python&color=brightgreen" />](https://github.com/topics/python) [<img src="https://img.shields.io/static/v1?label=&message=Web%20Scraping&color=important" />](https://github.com/topics/web-scraping) [<img src="https://img.shields.io/static/v1?label=&message=Rotating%20Proxies&color=blueviolet" />](https://github.com/topics/rotating-proxies)
 
+[![Oxylabs promo code](https://user-images.githubusercontent.com/129506779/250792357-8289e25e-9c36-4dc0-a5e2-2706db797bb5.png)](https://oxylabs.go2cloud.org/aff_c?offer_id=7&aff_id=877&url_id=112)
+
 ## Table of Contents
 
 - [Finding Current IP Address](#finding-your-current-ip-address)