Merge pull request #418 from plotly/de6-ad

Update sidebar to DE6 webinar

Author: red-patience

_includes/layouts/webinar_plug.html

@@ -1,5 +1,5 @@
 
-   <a href="https://plotly.com/webinars/plotly-cloud-dash-apps-team-sport/?utm_source=graphing_libraries&utm_medium=documentation&utm_campaign=plotly-cloud-team-sport&utm_content=sidebar" target="_blank">
-     <img src="https://images.prismic.io/plotly-marketing-website-2/aWrJpQIvOtkhBq36_plotlycloudteamsporthero-square.jpg?auto=format,compress"
-     style="width: 200px; height: 200px; position: fixed; bottom: 10px; left: 50px" alt="Sign up for the upcoming webinar, Meet Plotly Cloud: Dash Apps as a Team Sport">
+   <a href="https://plotly.com/webinars/dash-enterprise-6-production-ready-data-apps/?utm_source=graphing_libraries&utm_medium=documentation&utm_campaign=intro-dash-enterprise-6&utm_content=sidebar" target="_blank">
+     <img src="https://images.prismic.io/plotly-marketing-website-2/aYtigt0YXLCxVqP-_dash-enterprise-6.jpg?auto=format,compress"
+     style="width: 200px; height: 200px; position: fixed; bottom: 10px; left: 50px" alt="Sign up for the upcoming webinar: Introducing Dash Enterprise 6.0">
    </a>