docs: coffee button and bug report link

README.md

@@ -13,9 +13,13 @@
 <h5 align="center">
   <a href="#usage">How to use</a> |
   <a href="#install">Install</a> |
-  <a href="https://buymeacoffee.com/felitendo">☕ Buy Me a Coffee</a>
+  <a href="https://github.com/LoonixTools/cachy-auto-update/issues">Report a bug</a>
 </h5>
 
+<p align="center">
+  <a href="https://buymeacoffee.com/felitendo"><img src="https://cdn.buymeacoffee.com/buttons/v2/default-yellow.png" alt="Buy Me A Coffee" height="48"></a>
+</p>
+
 Built for the machine you set up for somebody else and would rather not maintain.
 Stays out of the way while they are gaming or on battery, never touches the
 package database while `pacman` is already running, and only bothers you if something