Update index.html

Author: mkhairy

index.html

@@ -199,10 +199,14 @@ <h3>Manual</h3>
 			   <li> <a href="https://github.com/accel-sim/accel-sim-framework/blob/release/util/hw_stats/README.md"> Collecting HW stats</a>   </li>
 			   <li> <a href="https://github.com/accel-sim/accel-sim-framework/blob/release/util/job_launching/README.md"> Collecting simulation stats</a>  </li>
 			   <li> <a href="https://github.com/accel-sim/accel-sim-framework/blob/release/util/plotting/README.md"> Correlator</a>  </li>
-			   <li> <a href="https://github.com/accel-sim/accel-sim-framework/tree/release/util/tuner/README.md"> Tuner </a> </li>
-			   <li> <a href="https://github.com/accel-sim/accel-sim-framework/blob/release/gpu-simulator/README.md"> Accel-Sim's Trace-driven front-end </a>  </li>
+			   <li> <a href="https://github.com/accel-sim/accel-sim-framework/tree/dev/util/tuner/README.md"> Tuner </a> </li>
+			   <li> <a href="https://github.com/accel-sim/accel-sim-framework/blob/dev/gpu-simulator/README.md"> Accel-Sim's Trace-driven front-end </a>  </li>
 			</ul>
-			<li> Performance model manual: <a href="http://gpgpu-sim.org/manual/index.php/Main_Page"> Original GPGPU-Sim manual </a>  </li>
+			<li> Performance model manual: 
+				<ul>
+				<li> Original GPGPU-Sim 3.x manual [<a href="http://gpgpu-sim.org/manual/index.php/Main_Page">manual</a>, <a href="http://www.gpgpu-sim.org/micro2012-tutorial/">slides</a>, <a href="https://www.youtube.com/channel/UCMZLxSL7Ibn6uCvwdZcGqFQ/videos">tutorial videos</a>]  </li>
+				<li> <a href="https://github.com/accel-sim/accel-sim-framework/blob/dev/gpu-simulator/gpgpu-sim4.md"> GPGPU-Sim 4.x changes</a>  </li>
+				</ul>
 			</ul>
 			If you have any questions, please feel free to join our <a href="https://groups.google.com/forum/#!forum/accel-sim">Google group</a>.
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