Update activities.md

added clarity on where to find form

content/schedule/activities.md

@@ -16,6 +16,8 @@ All activities take place between 15:00 and 18:00, though museums listed below *
 
 Please note that these excursions are **self-guided**, allowing you to visit your chosen activity at your own pace. All activities are within a 30-minute walking distance of the contest site. Dinner is served in the Flux building from 18:00 until 20:00, so be sure to come by on time after your activity.
 
+The registration form is available through a link in the information email sent on 02/11/2024.
+
 The following options are available:
 
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