update index.md

Author: supernord

index.md

@@ -16,7 +16,7 @@ This website is a virtual meeting place and hub for all users of **computing for
 {% include tiles-simple.html target = "tiles" col = "1" %}
 
 
-## Events
+## Upcoming Events
 
 {% include events.html event_type="upcoming_event" limit=4 %}