Update URL

Author: arkid15r

ideas.html

@@ -142,7 +142,7 @@ <h2>
                                 <p><a href="https://vacanza-team.slack.com/archives/gsoc">Slack Channel</a></p>
                             </div>
                             <div class="pure-u-1 pure-u-md-1" style="text-align: center;">
-                                <p><a href="https://github.com/vacanza/holidays/wiki/GSoC-2026">Ideas Page</a></p>
+                                <p><a href="https://github.com/vacanza/holidays/wiki/GSoC-2026#project-ideas">Ideas Page</a></p>
                             </div>
                             <div class="pure-u-1 pure-u-md-1" style="text-align: center;">
                                 <p><a href="https://github.com/vacanza/holidays/">Source Code</a></p>