fix: update issue link

Author: schmelto

docs/index.html

@@ -95,7 +95,7 @@ <h2 class="text-primary">Our Vision</h2>
     </section>
     <!-- Buttons  -->
     <div class="container buttons">
-      <a href="https://github.com/chryz-hub/chryz-hub.github.io/issues/new?assignees=&labels=invite+me+to+the+organization&template=invitation.md&title=Please+invite+me+to+the+GitHub+Community+Organization"
+      <a href="https://github.com/chryz-hub/chryz-hub.github.io/issues/new?assignees=&labels=invite+me+to+the+organization&template=invitation.yml&title=Please+invite+me+to+the+GitHub+Community+Organization"
         rel="noopener" class=" btn btn-primary" target="_blank"><i class="fas fa-plus"></i> Join the Community</i>
       <a href="https://github.com/chryz-hub/opensource-4-everyone/blob/master/My-PR-Contribution-Practice.md"
         rel="noopener" class="btn btn-secondary" target="_blank"><i class="fas fa-code-branch"></i> Create Pull