[fix] data html link

Author: marcusdgriff

data.html

@@ -43,7 +43,7 @@ <h1><a href="index.html">Topp Roots Lab</a></h1> <span> </span> </div>
 										analysis</a></li>
 							</ul>
 						</li>
-						<li class="current"><a href="Data.html">Data</a></li>
+						<li class="current"><a href="data.html">Data</a></li>
 						<li><a href="lab.html">Team</a></li>
 						<li><a href="join.html">Join</a></li>
 					</ul>