I'd like to be Shapely Demo Blog page.. but I couldn't

I was searching how to be Shapely Demo Blog page for almost whole day.
I couldn’t find out.

My blog page keep appear whole post articles. But Shapely Demo Blog page has articles summary and Read more bottom.
How can my blog page be like Demo page?

Here are my blog page: https://bestmacvpn.net/vpn-tips/

Hey there,
I hope you’re doing well today

Just to make sure, did you follow the tutorial on how to set up home page and blog?

Best Regards,
Support

Thank you for your replying.

Yes, I just follow Youtube and set as demo page. But only blog page is different.

Hello there,

Please go to the WordPress admin panel > Settings > Reading > For each article in a feed, show and select the summary option.

Best Regards,
Support