I have received an email from Google today email is below.
They want me to design my web in a certain way. they added a link to this email. I have copied that below.
Get started with Q&A rich results
Google Search Console
New Google rich result for Q&A pages
To the owner of https://www.mydomain.com
Google has detected that your site has markup for Question and Answer pages. These pages might soon begin to appear in Google Search results with special features.
To support for this feature for your site, ensure that your markup conforms to the guidelines in the linked "get started" document below. Use the Rich Results Test to test your code and preview the possible appearance in Google Search results. Use the Q&A Rich Result report to see if Google can find and crawl your Q&A items. The Performance report can show you which user queries showed your Q&A Rich Results in Google Search, and how these change over time.