Update solar system URL

Author: Avaer Kazmer

index.html

@@ -97,7 +97,7 @@ <h1>Exokit</h1>
           <h3>Examples</h3>
           <p>
             <a href="https://aframe.io/a-painter/" class="a-cube">A-Painter</a><br>
-            <a href="https://rawcdn.githack.com/exokitxr/webxr-samples/a8e2c94eba0ee5c9215f20d13057b6c25675d9b0/xr-presentation.html" class="a-cube">Solar System</a><br>
+            <a href="https://rawcdn.githack.com/exokitxr/webxr-samples/8a13dcbb22fa52feadfab7b7f41f85bdb3601a3f/xr-presentation.html" class="a-cube">Solar System</a><br>
             <a href="https://moonrider.xyz/" class="a-cube">Moonrider</a><br>
             <a href="https://exokitxr.github.io/examples/exobot.html" class="a-cube">Exobot</a><br>
             <a href="https://aframe.io/a-blast/" class="a-cube">A-Blast</a><br>