Update donation links in index.html to include GitHub Sponsors and maintain Liberapay option

Author: nikoscham

index.html

@@ -231,11 +231,20 @@ <h2 id="gettingstarted"><a name="Getting Started"></a>Getting Started</h2>
           >💖 If you find FEAScript useful, please consider supporting its development through a
           donation:</strong
         >
-        <script src="https://liberapay.com/FEAScript/widgets/button.js"></script>
-        <noscript
-          ><a href="https://liberapay.com/FEAScript/donate"
-            ><img alt="Donate using Liberapay" src="https://liberapay.com/assets/widgets/donate.svg" /></a
-        ></noscript>
+        <a href="https://github.com/sponsors/FEAScript">
+          <img
+            alt="GitHub Sponsors"
+            src="https://img.shields.io/static/v1?label=Sponsor&message=%E2%9D%A4&logo=GitHub&color=%23fe8e86)](https://github.com/sponsors/feascript"
+            style="vertical-align: middle"
+          />
+        </a>
+        <a href="https://liberapay.com/FEAScript/donate">
+          <img
+            alt="Donate using Liberapay"
+            src="https://img.shields.io/badge/Liberapay-F6C915?logo=liberapay&logoColor=black"
+            style="vertical-align: middle"
+          />
+        </a>
       </p>
     </div>