Update README.md

Author: beefancohen

README.md

@@ -20,6 +20,8 @@
   </a>
 </p>
 
+<a href='https://tidelift.com/subscription/pkg/npm-eslint-plugin-jsx-a11y?utm_source=npm-eslint-plugin-jsx-a11y&utm_medium=referral&utm_campaign=readme'>Sponsor us on Tidelift</a>
+
 # eslint-plugin-jsx-a11y
 
 Static AST checker for accessibility rules on JSX elements.
@@ -295,4 +297,4 @@ We model ARIA in the [aria-query](https://github.com/a11yance/aria-query) projec
 
 ## License
 
-eslint-plugin-jsx-a11y is licensed under the [MIT License](LICENSE.md).
+eslint-plugin-jsx-a11y is licensed under the [MIT License](LICENSE.md).