fix: remove code sponsor link from Readme (#38)

Author: hozefaj

README.md

@@ -29,8 +29,6 @@
 [![Star on GitHub][github-star-badge]][github-star]
 [![Tweet][twitter-badge]][twitter]
 
-<a href="https://app.codesponsor.io/link/PKGFLnhDiFvsUA5P4kAXfiPs/kentcdodds/match-sorter" rel="nofollow"><img src="https://app.codesponsor.io/embed/PKGFLnhDiFvsUA5P4kAXfiPs/kentcdodds/match-sorter.svg" style="width: 888px; height: 68px;" alt="Sponsor" /></a>
-
 ## The problem
 
 1. You have a list of dozens, hundreds, or thousands of items