improve sponsor section in readme

README.md

@@ -36,18 +36,14 @@
   </a>
 
   <div>
-    <sub>
       Please note, that being sponsored does not affect the individuality of the `bat`
       project or affect the maintainers' actions in any way. We remain impartial and
       continue to assess pull requests solely on merit - the features added, bugs
       solved, and effect on the overall complexity of the code. No issue will have a
       different priority based on sponsorship status of the reporter.
-    </sub>
   </div>
-  <sub>
 
   If you are interested to learn more, see our [`CONTRIBUTING.md`](CONTRIBUTING.md) guide.
-  </sub>
 </p>
 
 ### Syntax highlighting