docs: update sponsor link

Author: Akryum

README.md

@@ -12,11 +12,7 @@
 Easy tooltips, popovers and dropdown with <a href="https://github.com/FezVrasta/popper.js">Popper.js</a>
 </p>
 
-<p align="center">
-  <a href="https://www.patreon.com/akryum" target="_blank">
-    <img src="https://c5.patreon.com/external/logo/become_a_patron_button.png" alt="Become a Patreon">
-  </a>
-</p>
+[💚️ Become a Sponsor](https://github.com/sponsors/Akryum)
 
 ## Sponsors