harmony update link correction

Author: luiz-ladeira

content/authors/HARMONY-2025/_index.md

@@ -56,7 +56,7 @@ HARMONY 2025 will be held at **KU Leuven**
 
 Local organizers are <a href="mailto:[email protected]">Liesbet Geris</a>, <a href="mailto:[email protected]">Luiz Ladeira</a>, and <a href="mailto:[email protected]">Bernard Staumont</a>. 
 
-<h2><a href="https://forms.gle/o8P3zvfdaEoLKUao8" target="_blank">Call for Lightning Talks and Posters</a></h2>
+<h2><a href="https://forms.gle/o8P3zvfdaEoLKUao8" target="_blank">Registration</a></h2>
 
 Registration for the meeting is free. Please register at the link above as soon as possible. This will help us plan the schedule and match your interests to the timing of the breakouts, etc. Note, only registered attendees will be sent information related to the meeting.