Update README.md

Author: akiran

README.md

@@ -47,3 +47,9 @@ This is especially usefull if html with multiple code snippets is generated from
   {"html with multiple code snippets"}
 </Highlight>
 ```
+
+### Sponsor
+
+<a target='_blank' rel='nofollow' href='https://app.codesponsor.io/link/8Wa5rFgnuaoyA8ryN2LAAqgu/akiran/react-highlight'>
+  <img alt='Sponsor' width='888' height='68' src='https://app.codesponsor.io/embed/8Wa5rFgnuaoyA8ryN2LAAqgu/akiran/react-highlight.svg' />
+</a>