Update index.html

Author: mo-nika

index.html

@@ -48,7 +48,7 @@
 <!-- end of banner-5 -->
 {% comment %} {% include venue.html %} {% endcomment %}
 <!-- end of venue -->
-{% include lightningtalks.html %}
+{% comment %} {% include lightningtalks.html %} {% endcomment %}
 <!-- end of lightningtalks -->
 {% comment %} {% include banner-3.html %} {% endcomment %}
 <!-- end of banner-3 -->