Changed FC to Beam destinations

WebSites/menu/available-screens.html

@@ -3,7 +3,7 @@
 <li><a href="#">Beam Diagnostics</a></li>
   <ul>
     <li><a href="/pbi/">Overview</a></li>
-    <li><a href="/pbifc/">NCL Faraday Cups</a></li>
+    <li><a href="/pbifc/">Beam Destinations</a></li>
   </ul>
 <li><a href="/fbis/">FBIS</a></li>
 <li><a href="#">Test Stand 2</a></li>