Merge pull request #342 from plotly/swap-ad-back15

Swap sidebar ad back to Dash Club

Author: red-patience

_includes/layouts/webinar_plug.html

@@ -1,5 +1,5 @@
 
-    <a href="https://go.plotly.com/smarter-ai-data-apps?utm_source=Webinar:%20Dash%20Enterprise%205.6&utm_medium=graphing_libraries&utm_content=sidebar" target="_blank">
-      <img src="https://images.prismic.io/plotly-marketing-website-2/Z1jQ_pbqstJ98SCN_5.6_square_ads.jpg?auto=format,compress"
-      style="width: 200px; height: 200px; position: fixed; bottom: 10px; left: 50px" alt="Dash Enterprise 5.6 Launch: Build Smarter Data Apps with Plotly AI">
+    <a href="https://go.plotly.com/dash-club?utm_source=Dash+Club+2022&utm_medium=graphing_libraries&utm_content=sidebar" target="_blank">
+      <img src="https://images.prismic.io/plotly-marketing-website-2/7953022d-73b1-481e-8f6b-9ce9bd80e588_Dash+Club.jpeg?auto=compress,format"
+      style="width: 200px; height: 200px; position: fixed; bottom: 10px; left: 50px" alt="Sign up to Dash Club to get two free cheat sheets as well as tips and tricks, community apps, and deep dives delivered every two months">
     </a>