Can someone help with this

Hi guys, I’m new here and i dont know much stuff.

If someone know how to do this, please reply.

So 1st i need how to add button “read more” in posts.

and 2nd someone know how to do this.

https://croleague.com/?page_id=29

check on that site, i want to make boxes like that, and when you click on it to open new page.