New name for video trailer

index.html

@@ -381,7 +381,7 @@
  <div id='year2018' class='row'>
 <div class='col1'><img src='img/2018_grad_logo_inverted.png' class='logo'/><p class='gradShow'>Ex, XPUB</p><p>July 2018</p></div>
  <div class='col2'>
- <p><a href='#2018-att-video' class='int'>Video trailer</a></p>
+ <p><a href='#2018-att-video' class='int'>gradshow.mp4</a></p>
  </div>
  <div class='col6'>
  	<div class='subrow'>