Fixed link to scheduling documentation

Author: stephenchouca

_includes/demo.html

@@ -112,7 +112,7 @@ <h6 style="margin-bottom: 0px; margin-top: 18px">Input a tensor algebra expressi
                 <big style="text-align: center; display: inline-block; width: 100%">
                   Scheduling Command
                   <button class="help-btn mdl-button mdl-js-button mdl-button--icon">
-                    <a target="_blank" rel="noopener noreferrer" href="http://tensor-compiler.org/docs/scheduling/index.html">
+                    <a target="_blank" rel="noopener noreferrer" href="http://tensor-compiler.org/docs/scheduling.html">
                       <i class="material-icons" style="font-size: 20px; color: black">help_outline</i>
                     </a>
                   </button>