Hello,
Oviously, you can display the excerpt of the blog post with title, date, read more button in the blog overview section as shown in screenshot below:
http://prntscr.com/q83s58
To add excerpt for the blog post, first of all edit the post and add the desired content in excerpt section in right side as shown in screenshot below:
http://prntscr.com/q83rji
Hope this helps.
If you have any queries further, let us know.
Thank you.