Update layout.html

Author: shoumikhin

docs/source/_templates/layout.html

@@ -3,7 +3,7 @@
 {% block extrahead %}
 {% if 'getting-started-setup' in pagename%}
 <link rel="stylesheet" href="../_static/css/progress-bar.css">
-<script src="_static/js/progress-bar.js" defer></script>
+<script src="../_static/js/progress-bar.js" defer></script>
 {% elif 'compiler-delegate-and-partitioner' in pagename%}
 <link rel="stylesheet" href="../_static/css/progress-bar.css">
 <script src="../_static/js/progress-bar.js" defer></script>