Fix typo

aleksis/apps/paweljong/templates/paweljong/event/detail.html

@@ -15,7 +15,7 @@
   <h4>{{ event }}</h4>
 
   {% has_perm 'paweljong.change_event_rule' user event as can_change_event_rule %}
-  {% has_perm 'paweljong.event_checkpoint_rulw' user event as can_checkpoint_rule %}
+  {% has_perm 'paweljong.event_checkpoint_rule' user event as can_checkpoint_rule %}
 
     <p>
      {% if can_change_event_rule %}