Merge pull request jupyter#171 from charnpreetsingh/html-valid

Html validator fixes

Author: minrk

_includes/footer.html

@@ -37,5 +37,4 @@
     <script src="{{site.baseurl}}/js/scroll.js"></script>
     <script src="{{site.baseurl}}/js/architecture.js"></script>
     <script src="{{site.baseurl}}/js/simon.js"></script>
-    <!-- <script src="{{site.baseurl}}/js/timeline/main.js"></script> <!-- Resource jQuery -->
-     <script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+'://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js,fjs);}}(document, 'script', 'twitter-wjs');</script>
+    <script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+'://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js,fjs);}}(document, 'script', 'twitter-wjs');</script>

index.html

@@ -173,8 +173,8 @@ <h3 class="section-header">Currently in use at</h3>
         <div class="container">
             <div class="architecturedescription">
                 <img src="assets/architectureicon2.svg" class="section-icon" alt="icon to represent jupyter architecture">
-                <h3 class="section-header">Jupyter Architecture</h2>
-                <h4 class="support-paragraph">The Jupyter Notebook is based on a set of open standards for interactive computing. Think HTML and CSS for interactive computing on the web. These open standards can be leveraged by third party developers to build customized applications with embedded interactive computing.</p>
+                <h3 class="section-header">Jupyter Architecture</h3>
+                <h4 class="support-paragraph">The Jupyter Notebook is based on a set of open standards for interactive computing. Think HTML and CSS for interactive computing on the web. These open standards can be leveraged by third party developers to build customized applications with embedded interactive computing.</h4>
             </div>
             <div class="architecturecontent row col-md-12">
                 <div class="card col-md-4">