Update default.html

Author: banadiga

_layouts/default.html

@@ -16,7 +16,7 @@ <h2 class="project-tagline">{{ site.description | default: site.github.project_t
     <a href="{{ site.githuburl }}" class="btn" target="_blank">View on GitHub</a>
     <a href="https://forms.gle/aJn8YRzaMitbWWu89" class="btn" target="_blank">Add Topic</a>
     <a href="https://www.youtube.com/channel/UCbBzU09lr8FLFaTMbXY4zBQ" class="btn" target="_blank">YouTube channel</a>
-    <a href="https://secure.wayforpay.com/donate/lvivjavaclub" class="btn">Donate</a>
+    <a href="donate.html" class="btn">Donate</a>
 </section>
 
 <section class="main-content">