re-add the events widget

docsite/_themes/srtd/layout.html

@@ -145,6 +145,23 @@
         {% else %}
             {{ toc }}
         {% endif %}
+
+<!-- changeable widget -->
+<center>
+<br/>
+<span class="hs-cta-wrapper" id="hs-cta-wrapper-71d47584-8ef5-4b06-87ae-8d25bc2a837e">
+    <span class="hs-cta-node hs-cta-71d47584-8ef5-4b06-87ae-8d25bc2a837e" id="hs-cta-71d47584-8ef5-4b06-87ae-8d25bc2a837e">
+        <!--[if lte IE 8]><div id="hs-cta-ie-element"></div><![endif]-->
+        <a href="http://cta-redirect.hubspot.com/cta/redirect/330046/71d47584-8ef5-4b06-87ae-8d25bc2a837e"><img class="hs-cta-img" id="hs-cta-img-71d47584-8ef5-4b06-87ae-8d25bc2a837e" style="border-width:0px;" src="https://no-cache.hubspot.com/cta/default/330046/71d47584-8ef5-4b06-87ae-8d25bc2a837e.png" /></a>
+    </span>
+    <script charset="utf-8" src="https://js.hscta.net/cta/current.js"></script>
+        <script type="text/javascript">
+            hbspt.cta.load(330046, '71d47584-8ef5-4b06-87ae-8d25bc2a837e');
+        </script>
+</span>
+</center>
+
+
       </div>
       &nbsp;
     </nav>