Apply suggestions from code review

Author: stayseesong

src/connections/destinations/catalog/mailchimp/index.md

@@ -133,8 +133,8 @@ Again, this will **NOT** work for new users. New users will always have their su
 ### Why are my calls with trait arrays not showing up in Mailchimp?
 Mailchimp doesn't support arrays as traits values. This can cause calls to not show up.
 
-### Frequent 404 Bad Requests from Identify events without error message?
-If you are sending concurrent requests for the same userId, MailChimp will block the events due to how MailChimp restricts each API key to a maximum of 10 concurrent requests. 
+### Why are there frequent 404 Bad Requests from Identify events without an error message?
+If you send concurrent requests for the same userId, MailChimp blocks the events because MailChimp restricts each API key to a maximum of 10 concurrent requests. 
 
 ## Engage