Update index.html

Fix actions link

Author: tgrogers

index.html

@@ -91,7 +91,7 @@
             <a class="btn btn-primary" role="button" href="https://github.com/accel-sim/accel-sim-framework">
                 <i class="fa fa-github"></i> View on Github
             </a>
-            <a href="https://github.com/accel-sim/accel-sim-framework/actions/workflows">
+            <a href="https://github.com/accel-sim/accel-sim-framework/actions">
                </i><img
                src="https://github.com/accel-sim/accel-sim-framework/actions/workflows/long-tests.yml/badge.svg">
             </a><br><br>