Add a Newsletter to the Vitess Website

[Ayush9026]

Issue Description:
Currently, the Vitess website lacks a newsletter feature. A newsletter can serve as a valuable communication tool to keep the community informed about updates, new releases, events, and other important information related to Vitess.

Proposal:

• Objective: To create and integrate a newsletter feature on the Vitess website to enhance community engagement and communication.

• Benefits:

1. Regular Updates: Keep the community informed about the latest news, updates, and releases.

2. Engagement: Increase community engagement by providing regular and valuable content.

3. Promotion: Promote upcoming events, webinars, and community activities.

4. Feedback: Gather feedback and insights from the community through surveys and polls included in the newsletter.