Show excerpt instead of full post on WordPress Twenty-X themes

You can always add the “Read more” break for every post that you make, but that’s not what we want.
You have to edit the theme’s code for this to work.

Go to Appreance>Theme Editor

From the right panel look for content.php and change the following

Use this instead

Basically, we checked if the content displayed is for post details or is it any other page.

Note: the <?php tag should not be included in the content.php file since it’s already there.