📝 Add 'upsell using ai chatbots' blog post (#1612)

Co-authored-by: Baptiste Arnaud <baptiste.arnaud95@gmail.com>

ee/apps/landing-page/assets/prose.css

@@ -20,6 +20,12 @@
   margin-right: auto;
 }
 
+@media screen and (max-width: 768px) {
+  .prose > * {
+    max-width: 100%;
+  }
+}
+
 .prose > *:not(img) {
   width: 100%;
 }