Add vector_fe_ex6 and vector_fe_ex7 to examples TOC

Author: jwpeterson

examples.html

@@ -196,6 +196,10 @@ <h1>A Series of Example Programs</h1>
 
 <li><L1><a href="examples/vector_fe_ex5.html">Discontinuous Galerkin Vector Poisson Problem</a></L1></li>
 
+<li><L1><a href="examples/vector_fe_ex6.html">Raviart-Thomas Elements for H(div) Problems in 2D and 3D</a></L1></li>
+
+<li><L1><a href="examples/vector_fe_ex7.html">Hybridized Raviart-Thomas Elements</a></L1></li>
+
 </ol> </li>