Update contributors.html

Author: JacobReynolds

views/contributors.html

@@ -4,7 +4,7 @@ <h3>Special thanks to our contributors:</h3>
   <li><h4>Antti Rantasaari</h4></li>
   <li><h4>Ben Tindell</h4></li>
   <li><h4>Colin Salisbury</h4></li>
-  <li><h4>Eric Gruber</h4></li>
+  <li><h4>Eric Gruber (@egru)</h4></li>
   <li><h4>Jake Reynolds (@jreynoldsdev)</h4></li>
   <li><h4>Kai Tran (@k_tr4n)</h4></li>
   <li><h4>Rafael Seferyan</h4></li>