Track call in Mailchimp doc

[ishachopra0401]

What do these changes do?

Describe the changes you are proposing in this PR.

Type of documentation

• [ ] New documentation
• [ ] Documentation update
• [ ] Hotfix

[vercel[bot]]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated
rudderstack-docs	✅ Ready (Inspect)	Visit Preview	💬 Add your feedback	Feb 2, 2023 at 6:14AM (UTC)