Use correct context to get announcements in substitutions printout

aleksis/apps/chronos/templates/chronos/substitutions_print.html

@@ -16,7 +16,7 @@
   {% for day, c in days.items %}
     <h4>{{ c.day|date:"l" }} {{ c.day|date:"SHORT_DATE_FORMAT" }}</h4>
 
-    {% include "core/partials/announcements.html" with announcements=announcements show_recipients=1 %}
+    {% include "core/partials/announcements.html" with announcements=c.announcements show_recipients=1 %}
 
     {% include "chronos/partials/headerbox.html" with affected_teachers=c.affected_teachers affected_groups=c.affected_groups absent_teachers=c.absent_teachers absent_groups=c.absent_groups print=1 %}