Add CodeFund Sponsorship to README
MODIFY
README.rst
README.rst
+.. raw:: html
+
+ <p align="center">
+ <a href="https://codefund.io/properties/451/visit-sponsor">
+ <img src="https://codefund.io/properties/451/sponsor" />
+ </a>
+ </p>
+
urllib3
=======

Add CodeFund Sponsorship to README (#1696)